ULTRAHEAVY Synonyms: 35 Similar and Opposite Words

ultraheavy

adjective

Definition of ultraheavy

as in massive

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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 ultraheavy In 2021, Ark Energy took a stake in Hyzon Motors, one of the few firms working on ultraheavy trucks powered by fuel cells. — IEEE Spectrum, 25 Dec. 2022

Recent Examples of Synonyms for ultraheavy

Adjective

Toronto reacquired Leonard in an offseason trade after a salary cap-circumvention scandal that led to massive sanctions against the Clippers.

— CBS News, CBS News, 22 Oct. 2026
Pearson and his brother KeShaun are the two most prominent local opponents of Elon Musk’s xAI, a subsidiary of which has developed a massive data-center complex, provocatively named Colossus, in and around South Memphis.

— Keeanga-Yamahtta Taylor, New Yorker, 22 Oct. 2026

Definition of massive

Adjective

Schools who choose to leave the ACC before that have to pay a hefty exit fee.

— Jordan McPherson, Miami Herald, 22 Oct. 2026
Consider that the typical farm in Kansas spent about $31,000 on diesel last year – a hefty cost that could double this year, according to Gregg Ibendahl, associate professor of agricultural economics at Kansas State University.

— Matt Egan, CNN Money, 21 Oct. 2026

Definition of hefty

Adjective

Rather than relying on a bulky conventional liquid-cooling system with heavy hardware, the concept uses a flow-through tail designed around the Venturi effect.

— New Atlas, New Atlas, 27 Oct. 2026
People with large or overactive chewing muscles, often from clenching or grinding, who want to soften a bulky lower-face look or ease jaw pain.

— Hanna Wickes, Charlotte Observer, 26 Oct. 2026

Definition of bulky

Adjective

Modern Mermaid The fit and flare look got a voluminous update, with designers including Justin Alexander Signature, Elie Saab, Kyha Vivienne Westwood and more adding drama to the traditional mermaid wedding dress silhouette.

— Emily Mercer, Footwear News, 22 Oct. 2026
Congress has acknowledged, based on voluminous studies, that radiation at DOE sites poses health risks to workers.

— Lizz Giordano, ProPublica, 22 Oct. 2026

Definition of voluminous

Adjective

In one of the side plots to The Lord of the Rings, two of the Hobbits attempt to rouse Treebeard—a wise but ponderous sentient tree—to defend his forest from an army that is cutting it down.

— Ashley Belanger, ArsTechnica, 1 July 2026
The bass kept boring doggedly toward shore, lunging and vaulting into the air in ponderous leaps.

— Ted Janes, Outdoor Life, 21 May 2026

Definition of ponderous

Browse Nearby Words

ultrahazardous

ultraheavy

ultrahip

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Style

“Ultraheavy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultraheavy. Accessed 29 Oct. 2026.

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Synonyms of ultraheavy

adjective

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