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