Antonyms of adj concave

1 sense of concave

Sense 1
concave (vs. convex) -- (curving inward)

convex (vs. concave), bulging -- (curving or bulging outward)
        => bell-shaped -- (having a convex shape that resembles a bell)
        => biconvex, convexo-convex, lenticular, lentiform -- (convex on both sides; shaped like a lentil)
        => broken-backed, hogged -- ((of a ship) so weakened as to sag at each end)
        => convexo-concave -- (convex on one side and concave on the other with the convexity being greater than the concavity)
        => gibbous, gibbose -- ((used of the moon) more than half full)
        => helmet-shaped -- (having the convex shape of a helmet)
        => planoconvex -- (flat on one side and convex on the other)
        => umbellate, umbel-like -- (resembling an umbel in form)

Similarity of adj concave

1 sense of concave

Sense 1
concave (vs. convex) -- (curving inward)
       => acetabular, cotyloid, cotyloidal -- (of the cup-shaped socket that receives the head of the thigh bone)
       => biconcave, concavo-concave -- (concave on both sides)
       => boat-shaped -- (having a concave shape like a boat)
       => bowl-shaped -- (having a concave shape with an open top like a bowl)
       => bursiform, pouch-shaped, pouchlike, saclike -- (shaped like a pouch)
       => concavo-convex -- (concave on one side and convex on the other with the concavity being greater than the convexity)
       => cuplike -- (resembling the shape of a cup)
       => cupular, cupulate -- (shaped like (or supporting) a cupule)
       => dished, dish-shaped, patelliform -- (shaped like a dish or pan)
       => planoconcave -- (flat on one side and concave on the other)
       => recessed -- (resembling an alcove)
       => saucer-shaped -- (having a concave shape like a saucer)
       => umbilicate -- (depressed like a navel)
       => urn-shaped -- (having a concave shape like an urn)
          Also See-> intrusive#3