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