Find Antonyms

concave Antonyms

Opposite of concave

Because the opposite of concave shifts with each meaning, the 8 antonyms and opposite words below are separated across 4 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Having an outline or surface that curves inward like the interior of a circle, sphere, or bowl.

Usage Example

"concaving lenses are commonly used in eyeglasses to correct nearsightedness by diverging light rays."

Strongest
convex
Strong
bulging
protuberant
Weak
rounded

• adjective (Context 2)

Of a polygon, having at least one interior angle greater than 180 degrees so that a line segment between two points inside it can pass outside the figure.

Usage Example

"A five-pointed star is a classic example of a convex polygon."

Strongest
convex

• noun (Context 3)

A surface, line, or structure that curves inward; a hollow or vaulted recess.

Usage Example

"The skateboarder practiced riding along the steep convex of the wooden ramp."

Strongest
convex
Strong
bulge
protuberance

• verb (Context 4)

To make or become curved inward or hollowed out.

Usage Example

"The glassblower carefully heated and concaved the base of the bottle to give it stability."

Strong
bulge
protrude
swell

Similar words to concave

Words similar to concave shift depending on context. Common synonyms include:

concavity
incurved
re-entrant
hollow
sunken
hollowed
cupped
depression
See all synonyms of concave

Cite this Entry


Wordmom. (2026). Antonyms for Concave. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/concave
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