Synonyms of concave in English:

concave

adjective

  • curved inwards, hollow, hollowed out, scooped out, depressed, sunken; indented, recessed
    rare incurved, incurvate
    [Antonyms] convex
  • Definition of concave in:

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    Word of the day keek
    Pronunciation: kiːk
    verb
    peep surreptitiously