1. (a.) Rising or swelling into a rounded form; as, a convex lens -- opposed to concave\.

2. (n.) A convex body or surface.

arched arciform arclike arcual bandy bellied bellylike bowed bowlike bulging concave convexed embowed excurvate excurvated excurved gibbose gibbous humpbacked humped humpy hunched hunchy out-bowed oxbow rotund round rounded rounded out vaulted