WordNet sense 1 (characteristic of or suffering from kyphosis, an abnormality of the vertebral column):

humpbacked, humped, hunchbacked, crookback, crookbacked, kyphotic

WordNet sense 2 (not in good physical or mental condition; out of condition):

unfit

WordNet sense 3 ((used of the moon) more than half full):

gibbose

WordNet sense 4 (curving or bulging outward):

convex, bulging