round-backed vs crooked

round-backed and crooked both are adjectives.

Word	Noun	Adjective	Verb	Adverb
round-backed	No	Yes	No	No
crooked	No	Yes	No	No

As adjectives, round-backed and crooked are synonyms defined as:

round-backed and crooked: having the back and shoulders rounded; not erect

Other synonyms of round-backed include hunched, round-shouldered, stooped, stooping.

round-backed (adjective)	crooked (adjective)
having the back and shoulders rounded; not erect	having or marked by bends or angles; not straight or aligned
	not straight; dishonest or immoral or evasive
	irregular in shape or outline
	having the back and shoulders rounded; not erect