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Definitions

weighty

[wey-tee] / ˈweɪ ti /
ADJECTIVE
heavy
Synonyms
STRONGEST
hefty ponderous
WEAK
burdensome cumbersome cumbrous dense fat fleshy massive obese overweight porcine portly stout
Antonyms
WEAK
easy facile inconsequential light small solvable thin trivial unimportant unsubstantial
ADJECTIVE
serious, important
Synonyms
STRONGEST
consequential earnest meaningful momentous portentous significant sober solemn somber substantial
WEAK
big big deal considerable critical crucial forcible grave heavy heavyweight life and death material no-nonsense sedate severe staid underlined
Antonyms
STRONGEST
insignificant meaningless minor trivial unimportant
WEAK
easy facile inconsequential light small solvable thin unsubstantial
ADJECTIVE
troublesome, difficult
Synonyms
STRONGEST
onerous
WEAK
backbreaking burdensome crushing demanding exacting exigent grievous oppressive superincumbent taxing tough worrisome worrying
Antonyms
WEAK
easy facile inconsequential light small solvable thin trivial unimportant unsubstantial

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

France have eyes on a Slam but Scotland have weighty ambitions, too.

From BBC • Mar. 6, 2026

"Woah! That's heading right for us!" an audience member can be heard saying on a YouTube video of the incident on Tuesday as the weighty object bounces off its track.

From Barron's • Jan. 2, 2026

Initially called “Fiber K” by the DuPont chemist who invented it, it was a replacement for the rubber used in women’s foundation garments, which was weighty, hot and quick to stretch out.

From The Wall Street Journal • Nov. 28, 2025

Cox’s bad intent is why this weighty decision is now before the Supreme Court.

From Slate • Nov. 28, 2025

The man climbed the ladder and removed a weighty old-fashioned book with a leather cover.

From "The Ear, the Eye, and the Arm" by Nancy Farmer