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Definitions

heavyweight

[hev-ee-weyt] / ˈhɛv iˌweɪt /
ADJECTIVE
heavy
Synonyms
STRONG
fat gross large
WEAK
abundant ample awkward beefy big built bulky burdensome chunky considerable copious corpulent cumbersome cumbrous elephantine enceinte excessive expectant fleshy gravid hefty huge laden lead-footed loaded
Antonyms
STRONG
skinny slender thin
ADJECTIVE
big-league
Synonyms
STRONG
chief grave great heavy major professional
WEAK
big-time blue-chip critical crucial exceptional four-star front-page high-power major-league playing hard ball serious strictly business
Antonyms
STRONG
happy inconsequential insignificant little minor small trivial unimportant unskilled
NOUN
dignitary
Synonyms
STRONGEST
bigwig celebrity luminary
STRONG
VIP character eminence leader lion nabob notability notable official personage star
WEAK
big gun big kahuna big shot person of influence top cat
Antonyms
STRONGEST
nobody

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.

Preliminary discussions value the Chinese AI heavyweight at between $10 billion and $30 billion, the people said.

From The Wall Street Journal • Apr. 23, 2026

Nvidia may be best known as a heavyweight in artificial intelligence, but Tuesday’s announcement doesn’t mark its foray into quantum.

From Barron's • Apr. 14, 2026

On Saturday, Fieri attended UFC 327 in Miami, where Carlos Ulberg defeated Jiří Procházka by first-round knockout to become the new UFC light heavyweight champion.

From Salon • Apr. 14, 2026

What does Tyson Fury's comeback victory mean for boxing's heavyweight scene?

From BBC • Apr. 12, 2026

And our three girls romped and played with the heavyweight contender.

From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey