Antonyms of adj planoconcave

1 sense of planoconcave

Sense 1
planoconcave -- (flat on one side and concave on the other)

INDIRECT (VIA concave) -> convex, bulging -- (curving or bulging outward)

Similarity of adj planoconcave

1 sense of planoconcave

Sense 1
planoconcave -- (flat on one side and concave on the other)
       => concave (vs. convex) -- (curving inward)