Here's what rhymes with frightful.
rightful spiteful delightful Words that almost rhyme with frightful
rifle ireful title vital idle rival idol libel mitral skilful trifle stifle ical idyll direful rial idyl guileful lisle final trial arrival cycle spinal spiral tribal viral dial tidal bridle mindful primal recital vinyl bible bridal vial biol scribal sible sidewall viol sidle snivel surtitle survival revival atrial vaginal entitle archival recycle unskilful redial denial disciple archetypal suicidal reprisal incisal unmindful mistrial retrial homicidal parenchymal polyvinyl pretrial herbicidal parricidal semifinal kilocycle unicycle motorcycle antiviral intertidal mesenchymal fratricidal genocidal germicidal fungicidal spermicidal matricidal cerebrospinal bactericidal insecticidal