Definitions

hefty

[hef-tee] / ˈhɛf ti /

ADJECTIVE

big, bulky

Synonyms

STRONGEST

colossal fat heavy large massive robust sizable substantial tremendous weighty

WEAK

ample awkward beefy brawny burly cumbersome extensive forceful hulking husky large-scale major muscular ponderous powerful strapping strong sturdy thumping unwieldy vigorous

Antonyms

STRONGEST

easy impoverished inconsequential insignificant light little miniature poor slight small thin tiny 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.

It also amounts to a hefty one-off tax burden.

From MarketWatch • Jun. 5, 2026

Those that do will pay hefty insurance premiums.

From The Wall Street Journal • Jun. 4, 2026

Women’s Open at Erin Hills and feeling the hefty weight of expectation that came along with it.

From Los Angeles Times • Jun. 3, 2026

Murrell is likely to receive a hefty prison sentence, which raises the question of where he is likely to serve it.

From BBC • Jun. 2, 2026

Behind him came a hefty, brisk-looking rabbit something over twelve months old.

From "Watership Down: A Novel" by Richard Adams

Vocabulary lists containing hefty

The Omnivore's Dilemma

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The Wednesday Wars

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Hello, Universe

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!