Definitions

heavy-duty

[hev-ee-doo-tee, -dyoo-] / ˈhɛv iˈdu ti, -ˈdyu- /

ADJECTIVE

big

Synonyms

STRONGEST

considerable leading main popular powerful serious significant substantial valuable

WEAK

big-league big-time consequential eminent heavyweight influential major-league material meaningful momentous paramount prime principal prominent super supercolossal weighty

Antonyms

STRONGEST

insignificant little minor small subordinate trivial unimportant

WEAK

adolescent baby babyish blah bland dull humble infant infantile itsy juvenile selfish shy tiny unconfident ungenerous ungiving

ADJECTIVE

big

Synonyms

STRONGEST

colossal considerable enormous fat full gigantic hefty huge immense massive sizable substantial tremendous vast

WEAK

a whale of a ample awash brimming bulky burly capacious chock-full commodious copious crowded extensive heavyweight hulking humongous husky jumbo mammoth mondo monster oversize packed ponderous prodigious roomy spacious strapping stuffed supercolossal thundering voluminous walloping whopper whopping

Antonyms

STRONGEST

impoverished inconsiderable insignificant little miniature minute poor slight small teeny thin tiny unimportant

WEAK

adolescent baby babyish blah bland dull humble infant infantile itsy juvenile selfish shy unconfident ungenerous ungiving

ADJECTIVE

large-scale

Synonyms

STRONGEST

extensive huge large massive sizable substantial

WEAK

a whale of a ample awash brimming bulky bull burly capacious chock-full colossal commodious considerable copious crowded enormous fat full gigantic good great healthy heavyweight hefty hulking humongous husky immense jumbo mammoth mondo monster oversize packed ponderous prodigious roomy spacious strapping stuffed supercolossal thundering tremendous vast voluminous walloping whopper whopping

Antonyms

STRONGEST

little miniature short small tiny

ADJECTIVE

puissant

Synonyms

WEAK

able able-bodied active athletic big capable durable enduring energetic firm fixed forceful forcible hale hard as nails hardy hearty heavy in fine feather mighty muscular potent powerful reinforced robust rugged secure sinewy solid sound stable stalwart stark staunch steady stout strapping sturdy substantial tenacious tough unyielding vigorous well-built well-founded well-made

ADJECTIVE

strong

Synonyms

STRONGEST

durable secure solid stable sturdy unbreakable well-made

WEAK

firm hard reinforced tough

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.

To this day, no matter the conditions, he wears a pair of heavy duty black gloves meant to help players grip their clubs in wet weather.

From The Wall Street Journal • May 18, 2026

In the same order, released by the White House, he formalized a new 25-percent tariff on imported medium and heavy duty trucks and parts, beginning on November 1.

From Barron's • Oct. 17, 2025

The union has pushed for more oversight of self-driving vehicles, such as legislation mandating human operators in autonomous heavy duty trucks and other delivery vehicles.

From Los Angeles Times • Sep. 30, 2025

You need some real heavy duty bleach for that.

From Salon • Aug. 22, 2025

“Nah, I ain’t saying that. It’s just that eso esta heavy duty, thass all.”

From "Bodega Dreams" by Ernesto Quinonez

heavy-duty

Example Sentences

Related Words