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