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.

The gift of sibling relationships can seem, to those of us on the outside, to come with a hefty dose of paradox.

From The Wall Street Journal • Jun. 9, 2026

There were also hefty losses in Hong Kong, Shanghai and Singapore.

From Barron's • Jun. 8, 2026

If Uber Technologies wants to be pinged by Siri for ride requests, for instance, it will likely have to pay Apple a hefty fee.

From The Wall Street Journal • Jun. 5, 2026

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

From MarketWatch • Jun. 5, 2026

Encircled by hefty bolts, the primary containment vessel lid can be removed for maintenance.

From "Meltdown" by Deirdre Langeland

Vocabulary lists containing hefty

The Omnivore's Dilemma

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The Wednesday Wars

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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!