lunatic

adj.

1. Suffering from lunacy; insane.
2. Of or for the insane.
3. Wildly or giddily foolish: a lunatic decision.
4. Characterized by lunacy or eccentricity.

[Middle English lunatik, from Old French lunatique, from Latin lūnāticus, from lūna, moon.]

lunatic lu'na·tic n.

adjective

1. Afflicted with or exhibiting irrationality and mental unsoundness: brainsick, crazy, daft, demented, disordered, distraught, dotty, insane, mad, maniac, maniacal, mentally ill, moonstruck, off, touched, unbalanced, unsound, wrong. Informal bonkers, cracked, daffy, gaga, loony. Slang bananas, batty, buggy, cuckoo, fruity, loco, nuts, nutty, screwy, wacky. Chiefly British crackers. Law non compos mentis. Idioms: around the bend, crazy as a loon, mad as a hatter, not all there, nutty as a fruitcake, offout ofone's head, off one's rocker, of unsound mind, out of one's mind, sick in the head, stark raving mad. See sane/insane.
2. So senseless as to be laughable: absurd, foolish, harebrained, idiotic, imbecilic, insane, mad, moronic, nonsensical, preposterous, silly, softheaded, tomfool, unearthly, zany. Informal cockeyed, crazy, loony, loopy. Slang balmy², dippy, dopey, jerky, sappy, wacky. See ability/inability, knowledge/ignorance.

noun

A person regarded as strange, eccentric, or crazy: crackpot, crazy, eccentric. Informal crank, loon, loony. Slang cuckoo, ding-a-ling, dingbat, kook, nut, screwball, weirdie, weirdo. See wise/foolish.

adj

Definition: crazy, mad
Antonyms: healthy, sane, sensible

n

Definition: madperson
Antonyms: sane person

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Dansk (Danish)
n. - vanvittig, sindssyg, gal
adj. - vanvittig, sindssyg, gal

idioms:

• lunatic asylum    sindssygeanstalt, galeanstalt, galehus
• lunatic fringe    yderliggående fanatikere

Nederlands (Dutch)
gek, waanzinnig

Français (French)
n. - (Méd) dément (arch), aliéné, (Jur) dément (arch), (fig) fou/folle
adj. - (Méd, Jur) dément (arch), (fig) fou/folle

idioms:

• lunatic asylum    asile d'aliénés
• lunatic fringe    les extrémistes

Deutsch (German)
n. - Wahnsinniger, Irrer
adj. - wahnsinnig

idioms:

• lunatic asylum    Irrenanstalt
• lunatic fringe    extreme Minderheitsgruppe

Ελληνική (Greek)
n. - φρενοβλαβής, παράφρων, τρελός
adj. - παράφρονας, τρελός

idioms:

• lunatic asylum    φρενοκομείο, άσυλο φρενοβλαβών
• lunatic fringe    δράκα εξτρεμιστών

Italiano (Italian)
lunatico

idioms:

• lunatic asylum    manicomio
• lunatic fringe    frangia estremista

Português (Portuguese)
n., -
adj. - lunático (m), louco (m)

idioms:

• lunatic asylum    asilo (m) de loucos
• lunatic fringe    pessoa (f) ou grupo (m) de extremistas fanáticos

Русский (Russian)
душевнобольной, безумец

idioms:

• lunatic asylum    психиатрическая больница
• lunatic fringe    фанатичные приверженцы

Español (Spanish)
n. - lunático, demente, loco
adj. - lunático, demente, loco, descabellado, de locos

idioms:

• lunatic asylum    manicomio
• lunatic fringe    extremistas, fanáticos

Svenska (Swedish)
n. - galning, dåre, (föråld.) sinnessjuk (person)
adj. - vansinnig, dåraktig, vild, otyglad

中文（简体）(Chinese (Simplified))
疯人, 愚蠢的人, 癫狂者, 疯癫的, 丧心病狂的, 愚蠢的

idioms:

• lunatic asylum    疯人院, 精神病院
• lunatic fringe    狂热者, 极端主义者

中文（繁體）(Chinese (Traditional))
n. - 瘋人, 愚蠢的人, 癲狂者
adj. - 瘋癲的, 喪心病狂的, 愚蠢的

idioms:

• lunatic asylum    瘋人院, 精神病院
• lunatic fringe    狂熱者, 極端主義者

한국어 (Korean)
n. - 미치광이 , 정신 이상자, 괴짜
adj. - 미친 , 정신이상의, 미치광이를 위한

日本語 (Japanese)
n. - 狂人, 精神異常者, 心神喪失者
adj. - 精神異常の, 気違いじみた

idioms:

• lunatic asylum    精神病院
• lunatic fringe    少数過激派

العربيه (Arabic)
‏(الاسم) المجنون, المجذوب, الطائش (صفه) مجنون, مجذوب, طائش, معد للعنايه بالمحاذيب‏

עברית (Hebrew)
n. - ‮מטורף, אדם מוזר, טיפש‬
adj. - ‮מטורף, מוזר, טיפש‬

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