HEAVYDUTY Synonyms: 130 Similar and Opposite Words

heavy-duty

adjective

ˈhe-vē-ˈdü-tē

Definition of heavy-duty

as in intensive

extreme in degree, power, or effect some heavy-duty lobbying on the part of the president was necessary in order to get the bill passed

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in powerful

having great power or influence a group of heavy-duty politicians and other notables attended the gala

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of heavy-duty The Environmental Protection Agency on Thursday proposed rolling back emission standards for new heavy-duty trucks, including buses, garbage trucks and semis. — Bloomberg, Oc Register, 9 July 2026 Fortunately for Ram, the company was still building some Hemis to supply its heavy-duty truck line, so bringing production back online was more a matter of scaling back up than rebuilding the whole thing from scratch. — Byron Hurd, The Drive, 9 July 2026 Instead of chasing ultra-light minimalism, it is built around a thicker, more heavy-duty format, combined with a bold futuristic design language. — New Atlas, 9 July 2026 Use a heavy-duty laundry detergent that contains enough enzymes to break the bond between body oils and soil to ensure the fabric is clean. — Mary Marlowe Leverette, Southern Living, 9 July 2026 See All Example Sentences for heavy-duty

Recent Examples of Synonyms for heavy-duty

Adjective

But that is labor intensive, and when a fire burns thousands of acres, the time and cost involved can be too high.

— Los Angeles Times, Los Angeles Times, 9 July 2026
Built for expansion Aurora was used to perform the computationally intensive quantum chemistry simulations integrated into ChemGraph, while the ALCF Inference Service provided access to open-weight language models hosted on Argonne systems.

— Neetika Walter, Interesting Engineering, 9 July 2026

Definition of intensive

Adjective

The twist is that she’s already attached to Reynolds (Ben Foster), who looks like a dweeb — but is, in fact, an extremely wealthy and powerful drug kingpin.

— Owen Gleiberman, Variety, 16 July 2026
Ruemmler is the latest prominent figure called before the House Oversight Committee as lawmakers investigate the network of powerful people connected with Epstein.

— ABC News, ABC News, 15 July 2026

Definition of powerful

Adjective

Research shows warming temperatures from burning coal, oil and gas are making fires more frequent and intense.

— ABC News, ABC News, 15 July 2026
After an intense tournament in the United States, Canada and Mexico, in which matches have been played in extreme heat and sometimes at altitude, freshness come Sunday could certainly be crucial.

— Michael Cox, New York Times, 14 July 2026

Definition of intense

Adjective

The 650,000 barrels-a-day Dangote plant produces enough fuel for domestic consumption in Nigeria, Africa’s most populous nation, and is the most influential determinant of pump prices.

— Alexander Onukwue, semafor.com, 15 July 2026
Each year, The Hollywood Reporter recognizes the industry’s best and most influential business managers, the professionals who manage the financial lives of entertainment’s most high-profile figures.

— Claudia Rosenbaum, HollywoodReporter, 15 July 2026

Definition of influential

Adjective

During heavy rain, flooding is possible, especially in low-lying and flood-prone areas.

— NC Weather Bot, Charlotte Observer, 10 July 2026
The clearest early warning is heavy, frantic panting when a dog has not been exercising, along with drooling, red or dark gums, weakness or vomiting.

— Hanna Wickes, Kansas City Star, 9 July 2026

Definition of heavy

Adjective

That’s reigniting age-old feuds about production quotas that already led the United Arab Emirates, one of OPEC’s most significant members, to leave the group in April.

— David Goldman, CNN Money, 6 July 2026
It is recommended that any batteries in devices that will be stored for significant periods should undergo a maintenance routine to maintain their health by charging them to half capacity every six months.

— Ewan Spence, Forbes.com, 6 July 2026

Definition of significant

Adjective

Beyond California, scientists are raising alarms over the planet’s warming oceans, which — coupled with a strong El Niño — could increase temperatures for land dwellers in the coming weeks.

— Los Angeles Times, Los Angeles Times, 6 July 2026
Weather aside, Fall/Winter 2026 Haute Couture Week, running from July 6 to 9, will feature shows from 30 houses, compared with FW25’s 27-strong line-up.

— Laure Guilbault, Vogue, 6 July 2026

Definition of strong

Browse Nearby Words

heavy

heavy-duty

heavy-footed

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Style

“Heavy-duty.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/heavy-duty. Accessed 16 Jul. 2026.

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Synonyms of heavy-duty

adjective

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