arched, arciform, arclike, arcual, bandy, bowed, bowlike, bunchbacked, camelback, concave, convex, convexed, crookbacked, embowed, excurvate, excurvated, excurved, gibbose, humpbacked, humped, humpy, hunchbacked, hunched, hunchy, kyphotic, out-bowed, oxbow, rotund, vaulted