gibbous vs humpbacked

gibbous and humpbacked both are adjectives.

Word	Noun	Adjective	Verb	Adverb
gibbous	No	Yes	No	No
humpbacked	No	Yes	No	No

As adjectives, gibbous and humpbacked are synonyms defined as:

gibbous and humpbacked: characteristic of or suffering from kyphosis, an abnormality of the vertebral column

Other synonyms of gibbous include crookback, crookbacked, humped, hunchbacked, kyphotic.

gibbous (adjective)	humpbacked (adjective)
(used of the moon) more than half full	characteristic of or suffering from kyphosis, an abnormality of the vertebral column
characteristic of or suffering from kyphosis, an abnormality of the vertebral column