as in hole
a sunken area forming a separate space
water collected in a shallow concavity on the floor of the cave
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Recent Examples of concavity
And what is the second derivative, or the concavity, of the potential during those same relevant e-foldings of inflation?
—
Big Think, 22 Oct. 2025
Antonio Stradivari, for instance, carefully tinkered with the geometry of his violins—the relative concavity of the back and the front, the thickness of the wood—to produce his legendary results.
—Chris Almeida, The New Yorker, 6 Jan. 2024
Fluted white marble columns sit on black granite pedestals, carrying the eye upward to where lines slide over, folds narrow, and concavities become convex.
—Justin Davidson, Curbed, 3 Aug. 2023
In addition to measurements, scientists were also able to detect a large, broad concavity in one of the asteroid's two hemispheres as well as subtle dark and lighter regions that indicate small-scale surface features a few dozen meters across.
—Ariana Garcia, Chron, 22 Feb. 2023
Father pushed boards with his palm to make the concavity recede into dust.
—Oliver De La Paz Victoria Chang, New York Times, 23 Nov. 2022
However, toward the edges, the concavity flattens out, allowing a flat surface for riding straight.
—Chris Meehan, Popular Mechanics, 12 June 2022
The bump settled into the concavity of the sink.
—Morgan Thomas, The Atlantic, 16 May 2021
The right side of the head was one enormous concavity, which Lacassagne attributed to strikes from the bottle.
—Douglas Starr, Discover Magazine, 28 Feb. 2011
Big Think, 22 Oct. 2025
Antonio Stradivari, for instance, carefully tinkered with the geometry of his violins—the relative concavity of the back and the front, the thickness of the wood—to produce his legendary results.
—Chris Almeida, The New Yorker, 6 Jan. 2024
Fluted white marble columns sit on black granite pedestals, carrying the eye upward to where lines slide over, folds narrow, and concavities become convex.
—Justin Davidson, Curbed, 3 Aug. 2023
In addition to measurements, scientists were also able to detect a large, broad concavity in one of the asteroid's two hemispheres as well as subtle dark and lighter regions that indicate small-scale surface features a few dozen meters across.
—Ariana Garcia, Chron, 22 Feb. 2023
Father pushed boards with his palm to make the concavity recede into dust.
—Oliver De La Paz Victoria Chang, New York Times, 23 Nov. 2022
However, toward the edges, the concavity flattens out, allowing a flat surface for riding straight.
—Chris Meehan, Popular Mechanics, 12 June 2022
The bump settled into the concavity of the sink.
—Morgan Thomas, The Atlantic, 16 May 2021
The right side of the head was one enormous concavity, which Lacassagne attributed to strikes from the bottle.
—Douglas Starr, Discover Magazine, 28 Feb. 2011
Recent Examples of Synonyms for concavity
Noun
-
His absence left yet another hole in the quartet featuring him, Ball, Knueppel and Bridges.—
Roderick Boone,
Charlotte Observer,
9 Jan. 2026
-
Plunging directly in the frigid lake via holes carved in the ice.—
Julia Sayers Gokhale,
Midwest Living,
9 Jan. 2026
Noun
-
Still, fatality rates are rising for some common cancers, including breast, prostate, oral cavity and pancreatic cancers.—
Bloomberg,
Oc Register,
13 Jan. 2026
-
Rather than activating the olfactory nerve, the system stimulates the trigeminal nerve, a sensory pathway in the nasal cavity responsible for conveying touch, temperature, and irritation.—
New Atlas,
New Atlas,
12 Jan. 2026
Noun
-
Those two losses were part of a disappointing 1-3-1 homestand that put a dent in their previous home-ice dominance and put them in arrears in their chase for a playoff spot.—
Steve Conroy,
Boston Herald,
9 Jan. 2026
-
Even at the presidential level – where personal legacy should, in theory, be most sensitive – scandals barely leave a dent.—
Brandon Rottinghaus,
Washington Post,
7 Jan. 2026
Noun
-
Burn pits were a common method to dispose of waste up until around 2010, according to the VA.—
Stephen Underwood,
Hartford Courant,
12 Jan. 2026
-
There was seating around a fire pit.—
Paige Williams,
New Yorker,
12 Jan. 2026
Noun
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There are vapors wandering everywhere which must be untangled; there are men with organs full of holes, eaten up, with radiating cancers and all along the paths these furrows of black earth where some dog dies.—
Literary Hub,
Literary Hub,
14 Nov. 2025
-
Young olive trees have smooth, gray bark, while the bark develops interesting furrows as the plant ages.—
Arricca Elin SanSone,
Southern Living,
10 Nov. 2025
Noun
-
And while medications and therapy are important tools, Fabiano says exercise is recognized as a preferred treatment for depression.—
Allison Aubrey,
NPR,
12 Jan. 2026
-
The country legend struggled with her mental health and suffered from suicidal depression.—
Yamillah Hurtado,
PEOPLE,
12 Jan. 2026
Noun
-
Part of that is because the selection process doesn’t actually select the best players, rendering the accolade hollow.—
Sean Gentille,
New York Times,
16 Jan. 2026
-
For Suárez, those arguments ring hollow.—
Kate Linthicum,
Los Angeles Times,
12 Jan. 2026
Noun
-
During impact tests, samples with larger grains continuously showed shallower indentations.—
Georgina Jedikovska,
Interesting Engineering,
12 Jan. 2026
-
The time after dinner is for listening to nature talks, watching ocean documentaries, or generally hanging out with a deep indentation in your forehead, courtesy of your scuba mask.—
Susan Casey,
Travel + Leisure,
10 Jan. 2026
Cite this Entry
“Concavity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/concavity. Accessed 21 Jan. 2026.
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