Here's what rhymes with festive.
restive suggestive digestive congestive Words that almost rhyme with festive
testis effective affective excessive offensive defective incentive selective attentive corrective directive elective receptive deceptive infective inventive obsessive perceptive possessive recessive invective pensive endive collective objective perspective aggressive respective subjective successive defensive connective detective ineffective oppressive preventive reflective convective retentive suppressive deflective unoffensive extensive expensive impressive intensive protective expressive prospective depressive irrespective reflexive repressive inoffensive projective redemptive regressive inattentive preemptive digressive imperceptive noneffective unperceptive overattentive progressive apprehensive compressive hypertensive hypotensive disincentive overaggressive inexpensive retrospective contraceptive introspective coextensive transgressive unimpressive inexpressive nonobjective nonsuccessive comprehensive intersubjective proprioceptive counteroffensive retrogressive immunosuppressive antihypertensive