Definition of concave adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The meaning of CONCAVE is hollowed or rounded inward like the inside of a bowl. How to use concave in a sentence.

The concave, shiny building is built to maximize the use of sunlight, even on overcast days.

1. curved or hollowed inward like the inside of a circle or sphere. Compare convex (def. 1). 2. (of a polygon) having at least one interior angle greater than 180°. n. 3. a concave surface, part, …

CONCAVE definition: curved like a segment of the interior of a circle or hollow sphere; hollow and curved. See examples of concave used in a sentence.

Nov 1, 2025 · concave (comparative more concave, superlative most concave) Curved like the inner surface of a sphere or bowl. (geometry, not comparable, of a polygon) Not convex; …

Discover everything about the word "CONCAVE" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.

Concave describes an inward curve; its opposite, convex, describes a curve that bulges outward. They are used to describe gentle, subtle curves, like the kinds found in mirrors or lenses.

A surface that is concave curves inwards in the middle. ...a concave stomach. ...the concave bottom of an empty hair spray container.

Add to word list curved inward: a concave lens (Definition of concave from the Cambridge Academic Content Dictionary © Cambridge University Press)