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