ARCHNESSES Synonyms: 265 Similar and Opposite Words

arch 1 of 3

adjective

as in main

coming before all others in importance since the start of her acting career her parents have steadfastly remained her arch supporters

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Relevance

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as in wise

displaying or marked by rude boldness was so arch as to ask him outright if he was wearing a toupee

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as in mischievous

tending to or exhibiting reckless playfulness the arch look on the girl's face betrayed her as the one who had tricked the babysitter into believing that the house was haunted

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arch

2 of 3

noun

ˈärch

as in curvature

something that curves or is curved the limestone arch is a natural formation that is the product of many years of erosion

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arch

3 of 3

verb

as in to bend

to cause to turn away from a straight line the cat arched her back whenever she was stroked

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Antonyms & Near Antonyms

as in to curve

to turn away from a straight line or course the path gradually arches off into the woods

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Antonyms & Near Antonyms

straighten

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 arch

Adjective

But now, arch rival PepsiCo is claiming to have won them over in a blind taste test, sparking an existential crisis for the mascot. —

Sarah Whitten,sara Salinas,sarah Jackson,leslie Josephs, CNBC, 8 Feb. 2026 That accounts equally for Lily’s arch froideur and Diana’s enduring lack of self-worth, played by both actors with care and compassion, and contrasting flickers of vulnerability and resolve, respectively. —

Guy Lodge, Variety, 5 Feb. 2026

Noun

With its long arches and lights looming over the viaduct, the 6th Street Bridge has become a beacon for Angelenos and the curious. —

Los Angeles Times, 18 Feb. 2026 The natural arch, part of the Sant’Andrea sea stacks near the town of Melendugno in the southern region of Puglia, had long been a popular backdrop for wedding proposals and tourist photos. —

Reuters, NBC news, 17 Feb. 2026

Verb

Over the remainder of the half, the Broncos committed five turnovers and would have been down by even more at the break if not for a high-arching 3-pointer at the buzzer from Buchanan. —

Shaun Goodwin, Idaho Statesman, 31 Jan. 2026 Hold the bridge 3 to 4 inches off the floor — just high enough to avoid arching or straining your lower back. —

Dana Santas, CNN Money, 30 Jan. 2026 See All Example Sentences for arch

Recent Examples of Synonyms for arch

Adjective

Udmurtia’s main passenger airport, in the city of Izhevsk, and airports in nearby regions suspended operations early Saturday, according to Russia’s civil aviation authority, Rosaviatsiya.

— Los Angeles Times, Los Angeles Times, 21 Feb. 2026
In that way, the end of his main career will allow his side-gig to become his new, full-time job.

— Kyle Newman, Denver Post, 21 Feb. 2026