Unwound rhymes with:
wound, abound, aground, around, astound, bound, browned, confound, crowned, downed, drowned, expound, found, frowned, ground, hound, impound, inbound, lb, mound, newfound, pound, profound, propound, rebound, redound, renowned, resound, round, sound, surround, ultrasound, unbound, unsound, wound
Unwound sounds like:
uinta, unaided, unamended, unanimity, unaudited, und, undated, undid, undo, undue, unedited, unheeded, unimate, unimedia, uninitiated, unit, unita, unite, united, unity, unmade, unmanned, unmet, unnamed, unneeded, unted, untidy, untie, untied, untiedt, unto, unwanted, unwed, unwind