Convex and Concave

Opposite meaning words

Convex adjective - Curving or bulging outward.

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Concave is an antonym for convex in rounded topic.

Nearby Word: convexity

Concave adjective - Curved inward.

Usage example: a concave lens

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Convex is an antonym for concave in topics: hollow, curved.

Nearby Words: concavity, concaved

Cite this Source

Concave and Convex. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/convex/concave

Convex & Concave. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/convex/concave>.

Concave or Convex. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/convex/concave.

Google Ngram Viewer shows how "convex" and "concave" have occurred on timeline