humpbacked vs crookbacked

humpbacked and crookbacked both are adjectives.

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

As adjectives, humpbacked and crookbacked are synonyms defined as:

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

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

humpbacked (adjective)	crookbacked (adjective)
characteristic of or suffering from kyphosis, an abnormality of the vertebral column	characteristic of or suffering from kyphosis, an abnormality of the vertebral column