adj., worse (wûrs), worst (wûrst).

1. Not achieving an adequate standard; poor: a bad concert.
2. Evil; sinful.
3. Vulgar or obscene: bad language.
4. Informal. Disobedient or naughty: bad children.
5. Disagreeable, unpleasant, or disturbing: a bad piece of news.
6. Unfavorable: bad reviews for the play.
7. Not fresh; rotten or spoiled: bad meat.
8. Injurious in effect; detrimental: bad habits.
9. Not working properly; defective: a bad telephone connection.
10. Full of or exhibiting faults or errors: bad grammar.
11. Having no validity; void: passed bad checks.
12. Being so far behind in repayment as to be considered a loss: bad loans.
13. Severe; intense: a bad cold.
14. 1. Being in poor health or in pain: I feel bad today.
    2. Being in poor condition; diseased: bad lungs.
15. Sorry; regretful: She feels bad about how she treated you.
16. bad·der, bad·dest. Slang. Very good; great.

n.

Something that is below standard or expectations, as of ethics or decency: weighing the good against the bad.

adv. Usage Problem.

Badly.

idioms:

in bad Informal.

1. In trouble or disfavor.

my bad Slang.

1. Used to acknowledge that one is at fault.

not half (or so) bad Informal.

1. Reasonably good.

[Middle English badde.]

badness bad'ness n.

USAGE NOTE   Bad is often used as an adverb in sentences such as The house was shaken up pretty bad or We need water bad. This usage is common in informal speech but is widely regarded as unacceptable in formal writing. In an earlier survey, the sentence His tooth ached so bad he could not sleep was unacceptable to 92 percent of the Usage Panel. • The use of badly with want was once considered incorrect but is now entirely acceptable: We wanted badly to go to the beach. • The adverb badly is often used after verbs such as feel, as in I felt badly about the whole affair. This usage bears analogy to the use of other adverbs with feel, such as strongly in We feel strongly about this issue. Some people prefer to maintain a distinction between feel badly and feel bad, restricting the former to emotional distress and using the latter to cover physical ailments; however, this distinction is not universally observed, so feel badly should be used in a context that makes its meaning clear. • Badly is used in some regions to mean “unwell,” as in He was looking badly after the accident. Poorly is also used in this way. In an earlier survey, however, the usage was found unacceptable in formal writing by 75 percent of the Usage Panel.

Our Living Language   Most people might think that the slang usage of bad to mean its opposite, “excellent,” is a recent innovation of Black English. While it is of Black English origin, this usage has been recorded for over a century; the first known example dates from 1897. Even earlier, beginning in the 1850s, the word appears in the sense “formidable, very tough,” as applied to persons. Whether or not the two usages are related, they both illustrate a favorite creative device of informal and slang language—using a word to mean the opposite of what it “really” means. This is by no means uncommon; people use words sarcastically to mean the opposite of their actual meanings on a daily basis. What is more unusual is for such a usage to be generally accepted within a larger community. Perhaps when the concepts are as basic as “good” and “bad” this general acceptance is made easier. A similar instance is the word uptight, which in the 1960s enjoyed usage in the sense “excellent” alongside its now-current, negative meaning of “stiff.”

bad² (băd)
v. Archaic.

A past tense of bid.

adjective

1. Below a standard of quality: bum, poor, unsatisfactory. Idioms: below par, not up toscratchsnuff. See good/bad.
2. Morally objectionable: black, evil, immoral, iniquitous, peccant, reprobate, sinful, vicious, wicked, wrong. See right/wrong.
3. Misbehaving, often in a troublesome way: ill-behaved, naughty. See control/uncontrol, good/bad.
4. Not pleasant or agreeable: disagreeable, displeasing, offensive, uncongenial, unpleasant, unsympathetic. Informal icky. Slang yucky. See good/bad, pain/pleasure.
5. Bringing, predicting, or characterized by misfortune: evil, ill, inauspicious, unfavorable, unpropitious. See luck/misfortune/chance.
6. Impaired because of decay: putrid, rotten. See better/worse, taste/bad taste, thrive/fail/exist.
7. Causing harm or injury: deleterious, detrimental, evil, harmful, hurtful, ill, injurious, mischievous. See help/harm/harmless.

noun

Whatever is destructive or harmful: badness, evil, ill. See help/harm/harmless.

Idioms beginning with bad:
bad blood
badger game
bad hair day
bad mouth
bad off
bad trip

See also come to an end (bad end); feel bad; from bad to worse; get off on the wrong foot (to a bad start); give a bad name; give bad marks to; go bad; in a bad mood; in a bad way; in bad faith; in bad with someone; in someone's bad graces; leave a bad taste in one's mouth; make the best of (a bad bargain); not a bad sort; not bad; poor (bad) taste; run of (bad) luck; too bad; turn up (like a bad penny); with bad grace.

---

adj

Definition: decayed
Antonyms: good, ok, undecayed

adj

Definition: harmful
Antonyms: advantageous, beneficial, benevolent, good, honest, profitable, virtuous

adj

Definition: immoral
Antonyms: good, honest, just, reputable, right, true, virtuous

adj

Definition: of poor quality
Antonyms: acceptable, excellent, good, satisfactory, superior, worthy

---

A jinni (or genie) of Persia (modern-day Iran), supposed to have command over the winds and tempests. He presided over the twenty-second day of the month.

IN BRIEF: Not good or moral; wrong; evil.

Money is a good servant but a bad master. — Francis Bacon (1561-1626), English statesman, lawyer, philosopher & essayist.

Tutor's tip: The "bad" (evil or opposite of good) captain "bade" (past tense of bid) her to do something cruel.

This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)

Dansk (Danish)
adj. - slem, skidt, slet
n. - uheld, ødelæggelse, tab
adv. - dårligt

idioms:

• bad blood    ondt blod
• bad books    den sorte liste, den lille sorte bog
• bad break    forspildt mulighed, ærgerligt, bittert
• bad breath    dårlig ånde
• bad conscience    dårlig samvittighed
• bad deal    dårlig handel
• bad debt    uerholdelig fordring
• bad egg    skidt karakter, slubbert
• bad faith    ond tro
• bad form    dårlig opførsel, dårlig sportsånd
• bad lot    skidt karakter, slubbert
• bad manners    dårlige manerer, dårlig opdragelse
• bad mouth    beskidt mund, nedrakning
• bad news    dårlige nyheder, dårligt selskab
• bad tempered    hidsig, irritabel
• be in someone's bad books    være på den sorte liste, stå i den lille sorte bog
• from bad to worse    værre og værre, gå ned ad bakke
• go bad    gå dårligt
• too bad    ærgerligt, en skam
• with bad grace    vrangvilligt, modstræbende

Nederlands (Dutch)
slecht, beroerd, bedorven, ziek, stout, defect, ongezond, erg, ongunstig, vals

Français (French)
adj. - mauvais, méchant, détestable, de mauvaise qualité, gâté (des aliments), carié (une dent), faux (de l'argent), triste, malheureux (un résultat), grave (une erreur), sans provision (un chèque), douteux (une créance), (Ling) péjoratif, mal fondé (une réclamation), sérieux (une maladie)
n. - mal, méchant, mauvais
adv. - marotte (passe-temps), (fig) (avoir qch) dans la peau

idioms:

• bad blood    (avoir) de l'animosité
• bad break    (avoir) une période de déveine
• bad breath    (avoir) mauvaise haleine
• bad conscience    (avoir) mauvaise conscience
• bad deal    (faire) un mauvais marché, (faire) une mauvaise opération/affaire
• bad debt    (avoir) une créance douteuse
• bad egg    (être) un sale type
• bad faith    (être) de mauvaise foi
• bad form    (être) de mauvais ton, (être) déplacé
• bad lot    (être) un mauvais sujet, ne pas (valoir) cher
• bad manners    (avoir) de mauvaises manières, (être) de mauvais ton
• bad mouth    (avoir) mauvaise langue
• bad tempered    (avoir) mauvais caractère
• from bad to worse    (aller) de mal en pis
• go bad    se gâter, pourrir, tourner (le lait), se carier (une dent)
• in bad    (US) ne pas (être) dans les petits papiers de qn
• in someone's bad books    (être) mal vu de qn
• not bad    ne pas (être) mal (du tout)
• to the bad    mal tourner (fam)
• too bad    (être) dommage, (c'est) un peu fort

Deutsch (German)
adj. - schlecht, verdorben, faul, unartig, schädlich, krank, ungültig (Banknote), uneinbringlich, notleidend (Darlehen), (ugs.) grossartig
n. - das Schlechte, Soll, (Plur.) Unruhestifter
adv. - dringend, schlecht, ungenügend

idioms:

• bad blood    böses Blut
• bad break    Pech, Fehler
• bad breath    Mundgeruch
• bad conscience    schlechtes Gewissen
• bad deal    ungerechte Behandlung , Pech
• bad debt    uneinbringliche Schuld
• bad egg    übler Bursche
• bad faith    in böser Absicht
• bad form    schlechtes Benehmen
• bad lot    üble Person
• bad manners    schlechtes Benehmen
• bad mouth    Klatsch
• bad tempered    schlecht gelaunt
• from bad to worse    immer schlimmer
• go bad    schlecht werden
• in bad    [jmd. gegenüber] im Nachteil sein
• in someone's bad books    nicht mehr begehrt, in Ungnade gefallen
• not bad    nicht schlecht, nicht übel
• to the bad    auf die Schiefe Bahn geraten
• too bad    So ein Pech!

Ελληνική (Greek)
adj. - κακός, άσχημος, δυσάρεστος, (για τρόφιμα) αλλοιωμένος, βλαβερός, ακατάλληλος, δυσμενής, αντίξοος, ατυχής, βαρύς, σοβαρός, άρρωστος, πλαστός, αβάσιμος, άκυρος, λανθασμένος, σαραβαλιασμένος, άχρηστος, χαλασμένος, καταστραμμένος, υποδεέστερος, ηθικά απαράδεκτος, ανυπάκουος, (καθομ.) φοβερός, απίθανος
n. - κακή ή δυσάρεστη κατάσταση, (το) κακό, (το) άσχημο

idioms:

• bad blood    μίσος, μακροχρόνια ή παλιά έχθρα
• bad books    μαύρα κατάστιχα
• bad break    κακοτυχία, αναποδιά
• bad breath    δύσοσμη αναπνοή
• bad conscience    ένοχη συνείδηση
• bad deal    κακή μεταχείριση, εξαπάτηση, ρίξιμο
• bad debt    επισφαλές χρέος, επισφαλής οφειλή
• bad egg    κλούβιο αβγό, (μτφ.) παλιοτόμαρο
• bad faith    κακή πίστη, κακοπιστία
• bad form    αγένεια, απρέπεια
• bad lot    παλιάνθρωπος, κουμάσι
• bad manners    κακή/ανάρμοστη συμπεριφορά
• bad mouth    κακολογώ
• bad news    άσχημες ειδήσεις, κακά μαντάτα, (καθομ.) κακός μπελάς, λογαριασμός, λυπητερή
• bad tempered    οξύθυμος, δύστροπος, κακόκεφος
• be in someone's bad books    είμαι γραμμένος στα μαύρα κατάστιχα (κάποιου)
• from bad to worse    από το κακό στο χειρότερο
• go bad    (για τρόφιμα κ.λπ.) χαλώ, βρομίζω
• too bad    κρίμα, άκρως ενοχλητικό, (ειρων.) τι να κάνουμε!
• with bad grace    απρόθυμα, με μισή καρδιά

Italiano (Italian)
marcio, cattivo, moltissimo, cattivello, malato, scadente, difettoso, contrario, pietoso, spregevole, malsano

idioms:

• bad blood    cattivo sangue
• bad books    cattive letture
• bad break    sfortuna
• bad breath    alitosi, alito pesante, cattivo
• bad debt    debito insolvibile
• bad egg    cattivo soggetto
• bad faith    malafede
• bad form    scorrettezza
• bad lot    cattiva compagnia
• bad manners    maleducazione
• bad mouth    malalingua
• bad news    brutte notizie
• from bad to worse    di male in peggio
• too bad    peccato, tanto peggio
• with bad grace    a malincuore

Português (Portuguese)
adj. - mau, inferior, levado, defeituoso, inútil, dolorido, grave, corrupto, nocivo, viciado, triste
n. - o mal (m), azar (m), os maus (m pl), aquilo (m) que é mau

idioms:

• bad blood    rancor (m), inimizade (f)
• bad books    método desonesto de contabilidade
• bad break    má sorte
• bad breath    mau hálito (m)
• bad debt    calote (m) (coloq.), dívida (f) insolúvel
• bad egg    mau (m) elemento
• bad faith    desconfiança (f)
• bad form    falta (f) de educação
• bad lot    mau (m) elemento
• bad manners    maus (m pl) modos
• bad mouth    boca (f) suja, fofoqueiro (m)
• bad news    más notícias (f pl)
• bad tempered    mal-humorado
• from bad to worse    de mal a pior
• go bad    deteriorar-se, corromper-se
• too bad    muito ruim (sobre uma situação irreversível)
• with bad grace    de má vontade

Русский (Russian)
плохой, недостаточный, ошибочный, неприятный, неблагоприятный, жалкий

idioms:

• bad blood    вражда
• bad books    черный список
• bad break    не повезло
• bad breath    плохой запах изо рта
• bad debt    долг, который вряд ли будет оплачен
• bad egg    негодяй, мерзавец
• bad faith    дурные намерения
• bad form    нарушение этикета
• bad lot    негодяй, мерзавец
• bad manners    дурные манеры
• bad mouth    подстрекатель, злопыхатель
• bad news    опасный человек
• bad tempered    раздраженный, раздражительный
• from bad to worse    из огня да в полымя
• go bad    испортиться
• too bad    хуже некуда, Увы!
• with bad grace    неохотно, скрепя сердце

Español (Spanish)
adj. - podrido, pasado, putrefacto, equivocado, destemplado, deficiente, desfavorable, adverso, pésimo, grave, malsano
n. - malo, travieso, enfermo
adv. - malo, mal, de mal aspecto

idioms:

• bad blood    mala sangre, animosidad, encono
• bad break    mala suerte, error craso, desacierto
• bad breath    mal aliento
• bad conscience    conciencia sucia, remorder la conciencia
• bad deal    mal negocio
• bad debt    deuda incobrable
• bad egg    mal sujeto, mal tipo
• bad faith    de mala fe
• bad form    malos modales, mala educación
• bad lot    mal sujeto, mala persona
• bad manners    malos modales
• bad mouth    crítica malévola, maldición, calumnia
• bad tempered    de mal humor, malhumorado
• from bad to worse    de mal en peor
• go bad    podrirse, ponerse en mal estado
• in bad    en malas relaciones, en problemas
• in someone's bad books    en desgracia con alguien, estar en malas relaciones con uno
• not bad    no está nada mal, nada mal
• to the bad    deber , estar en deuda
• too bad    ¡qué pena!, ¡es una lástima!

Svenska (Swedish)
adj. - dålig, svag, ond, elak, ogiltig, falsk, skadlig
n. - ondska, omoral, elakhet

中文（简体） (Chinese (Simplified))
坏的, 坏的东西或情形, 坏, 很, 非常

idioms:

• bad blood    怨恨, 不满, 恶感
• bad books    有害的书
• bad break    不好的运气
• bad breath    口臭
• bad conscience    有愧于心
• bad deal    不合算的买卖
• bad debt    倒帐, 呆帐
• bad egg    坏人, 坏蛋
• bad faith    奸诈, 无信用
• bad form    不好的行为, 不好的举动
• bad lot    坏蛋, 恶棍
• bad manners    不礼貌, 不规矩
• bad mouth    说...的坏话
• bad news    坏消息, 噩耗, 添麻烦的人, 危险人物, 倒霉的事情
• bad tempered    脾气不好的
• be in someone's bad books    失宠于某人
• from bad to worse    越来越糟
• go bad    变坏, 腐败
• too bad    糟糕, 可惜
• with bad grace    勉强地

中文（繁體） (Chinese (Traditional))
adj. - 壞的
n. - 壞的東西或情形
adv. - 壞, 很, 非常

idioms:

• bad blood    怨恨, 不滿, 惡感
• bad books    有害的書
• bad break    不好的運氣
• bad breath    口臭
• bad conscience    有愧於心
• bad deal    不合算的買賣
• bad debt    倒帳, 呆帳
• bad egg    壞人, 壞蛋
• bad faith    奸詐, 無信用
• bad form    不好的行為, 不好的舉動
• bad lot    壞蛋, 惡棍
• bad manners    不禮貌, 不規矩
• bad mouth    說...的壞話
• bad news    壞消息, 噩耗, 添麻煩的人, 危險人物, 倒霉的事情
• bad tempered    脾氣不好的
• be in someone's bad books    失寵於某人
• from bad to worse    越來越糟
• go bad    變壞, 腐敗
• too bad    糟糕, 可惜
• with bad grace    勉強地

한국어 (Korean)
adj. - 나쁜, 부적당한, 서투른, 불운한, 틀린
n. - 나쁜 상태, 불운
adv. - 나쁘게, 서투르게, 대단히

idioms:

• be in someone's bad books    ~에게 미움을 받다
• go bad    나빠지다, 쉬다
• with bad grace    울며 겨자 먹기로, 마지 못해서

日本語 (Japanese)
adj. - 悪い, 不快な, 有害な, ひどい, 病んだ, 悪くなった, 不十分な, 誤った, 下手な, 不利な
n. - 悪いこと, 悪, 悪運
adv. - ひどく

idioms:

• bad blood    不和, 悪感情
• bad books    悪い計画
• bad break    分かち組み
• bad breath    口臭
• bad business    あいにくのこと
• bad deal    悪い情況
• bad debt    貸倒れ
• bad egg    ろくでなし, 人間のくず, 無益の企て
• bad faith    裏切り, 背信
• bad form    無作法
• bad language    悪口
• bad lot    人間のくず, 無益の企て
• bad manners    無作法
• bad mouth    悪口, 中傷
• bad news    悪い知らせ, 凶報, 厄介な問題
• bad patch    辛い時
• bad tempered    気難しい, 意地悪の
• from bad to worse    ますます悪化して
• get off to a bad start    出発を誤る
• go bad    腐る, 堕落する
• in a bad light    よく見えないところに, 不利な立場で
• in a bad temper    機嫌が悪くて
• in bad nick    体調不良で
• in bad repair    手入れの行き届いていない
• in bad shape    調子が悪い
• like a bad penny    望まずともたびたび現われる
• with bad grace    しぶしぶと

العربيه (Arabic)
‏(صفه) رديء, سيئ, مؤذ, غير جيد أو صالح, طالح (الاسم) رداءة‏

עברית (Hebrew)
adj. - ‮רע, גרוע, מזיק, חמור, רציני, חולה, לא-נעים, לא-רצוי, רקוב (אוכל), אשם, מתבייש, בגירעון, לא-תקף, של ניבול-פה‬
n. - ‮רוע, חורבן‬
adv. - ‮רע, גרוע, חמור, רציני, בגירעון‬

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bad breath	bad jojo
bad day	Conkers Bad Fur Day