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