Here's what rhymes with unenlighten.
enlighten lighten frighten tighten brighten heighten whiten titan Words that almost rhyme with unenlighten
ripen widen beiden pallidum lion lichen enliven liken liven bison siren hyphen scion siphon baryon hymen prion syphon lineman linemen thriven horizon fibrin fireman firemen pinyon linesman billycan dandelion aphelion finespun veniremen bedizen funnyman cotyledon perihelion dicotyledon monocotyledon