hunched vs round-backed

hunched and round-backed both are adjectives.

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

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

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

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

hunched (adjective)	round-backed (adjective)
having the back and shoulders rounded; not erect	having the back and shoulders rounded; not erect