Expansive rhymes with:
apprehensive, comprehensive, counteroffensive, defensive, expensive, extensive, hypertensive, inexpensive, inoffensive, intensive, nonresponsive, offensive, pensive, responsive, unresponsive
apprehensive, comprehensive, counteroffensive, defensive, expensive, extensive, hypertensive, inexpensive, inoffensive, intensive, nonresponsive, offensive, pensive, responsive, unresponsive