Antonyms of adj umbilicate

1 sense of umbilicate

Sense 1
umbilicate -- (depressed like a navel)

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

Similarity of adj umbilicate

1 sense of umbilicate

Sense 1
umbilicate -- (depressed like a navel)
       => concave (vs. convex) -- (curving inward)