HEAVY-DUTY 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 While there is a growing number of zero-emissions heavy-duty vehicles, including both battery EVs and hydrogen fuel cell EVs, adoption lags behind light-duty passenger vehicles. — Jonathan M. Gitlin, ArsTechnica, 30 June 2026 Red Wing Shoes Founded over a century ago in Red Wing, Minnesota, Red Wing Shoes remains a go-to destination — still family-owned and operating inside the same town — for heavy-duty footwear that never compromises on true craftsmanship. — Stacia Datskovska, Footwear News, 29 June 2026 To protect these specialized mariners, pilot boats evolved into highly stable, heavy-duty vessels. — Mrigakshi Dixit, Interesting Engineering, 29 June 2026 Despite being a heavy-duty walking shoe, rather than a more sleek sneaker, these were surprisingly easy to style. — Shannon Bauer, InStyle, 28 June 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

New York — The stocks that have fueled Wall Street’s powerful AI rally are suddenly under pressure as investors evaluate rising tensions in the Middle East, take profits after a historic run and reassess where to find value.

— John Towfighi, CNN Money, 9 July 2026
The powerful currents of flash floods can carry drivers off the road.

— NC Weather Bot, Charlotte Observer, 9 July 2026

Definition of powerful

Adjective

During periods of intense rainfall, the risk of flooding increases, particularly in low-lying and flood-prone areas.

— NC Weather Bot, Charlotte Observer, 8 July 2026
Treating fear and anxiety in dogs doesn’t always require a bigger yard or a more intense exercise routine.

— Ryan Brennan, Fort Worth Star-Telegram, 7 July 2026

Definition of intense

Adjective

Marie Antoinette was bold, beautiful, irreverent and hugely influential, and to revisit it now through Eleanor Coppola’s eyes, as both a filmmaker and a mother, is incredibly moving.

— Anthony D'Alessandro, Deadline, 8 July 2026
Project 2029 — a nod to Project 2025, the influential policy manual from the conservative Heritage Foundation — seeks to influence Democrats’ platforms.

— Simone Foxman, Fortune, 8 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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“Heavy-duty.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/heavy-duty. Accessed 12 Jul. 2026.

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Synonyms of heavy-duty

adjective

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