hunchbacked vs gibbous

hunchbacked and gibbous both are adjectives.

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

As adjectives, hunchbacked and gibbous are synonyms defined as:

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

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

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