adj., -i·er, -i·est.

1. Having considerable weight; heavy. See synonyms at heavy.
2. Burdensome; oppressive: weighty problems.
3. Of great consequence; momentous: the weighty matters before the delegates at the peace talks.
4. Having great power or influence: a weighty argument.
5. Solemn; serious: weighty music.

weightily weight'i·ly adv.
weightiness weight'i·ness n.

adjective

1. Having a relatively great weight: heavy, heavyweight, hefty, massive, ponderous. See heavy/light.
2. Having too much flesh: corpulent, fat, fatty, fleshy, gross, obese, overblown, overweight, porcine, portly, stout. See fat/thin.
3. Requiring great or extreme bodily, mental, or spiritual strength: arduous, backbreaking, burdensome, demanding, difficult, effortful, exacting, exigent, formidable, hard, heavy, laborious, onerous, oppressive, rigorous, rough, severe, taxing, tough, trying. See heavy/light.
4. Having great consequence or weight: earnest¹, grave², heavy, momentous, serious, severe. See important/unimportant.
5. Having or exercising influence: consequential, important, influential, powerful. See affect/ineffectiveness, important/unimportant, strong/weak.

adj

Definition: heavy
Antonyms: light, small, thin, unsubstantial

adj

Definition: serious, important
Antonyms: inconsequential, trivial, unimportant, unsubstantial

adj

Definition: troublesome, difficult
Antonyms: easy, facile, solvable

---

Note: click on a word meaning below to see its connections and related words.

The adjective has 5 meanings:

Meaning #1: having relatively great weight; heavy
  Antonym: weightless (meaning #1)

Meaning #2: of great gravity or crucial import; requiring serious thought
  Synonyms: grave, grievous, heavy

Meaning #3: weighing heavily on the spirit; causing anxiety or worry

Meaning #4: excessively fat
  Synonyms: corpulent, obese, rotund

Meaning #5: powerfully persuasive
  Synonyms: cogent, telling

---

Dansk (Danish)
adj. - vægtig, tung, tungtvejende, betydningsfuld

Nederlands (Dutch)
gewichtig, zwaar, zwaarwegend, belangrijk

Français (French)
adj. - de grand poids, monumental, lourd

Deutsch (German)
adj. - gewichtig, wichtig, schwer, einflußreich

Ελληνική (Greek)
adj. - βαρύς, σημαντικός, σπουδαίος

Italiano (Italian)
importante, grave

Português (Portuguese)
adj. - pesado

Русский (Russian)
веский, убедительный, обременительный, тяжелый

Español (Spanish)
adj. - importante, serio, pesado, de peso

Svenska (Swedish)
adj. - tung, viktig

中文（简体） (Chinese (Simplified))
重的, 沉重的, 有份量的

中文（繁體） (Chinese (Traditional))
adj. - 重的, 沈重的, 有份量的

한국어 (Korean)
adj. - 무거운, 중요한, 유력한

日本語 (Japanese)
adj. - 重要な, 重大な, 有力な, 重荷になる, 重苦しい

العربيه (Arabic)
‏(صفه) خطير, عظيم الشأن أو الأهميه, ثقيل, بدين, وجيه‏

עברית (Hebrew)
adj. - ‮כבד-משקל, רב-חשיבות, בעל השפעה, חשוב‬

If you are unable to view some languages clearly, click here.

To select your translation preferences click here.