Here's what rhymes with sponsiveness.
responsiveness unresponsiveness Words that almost rhyme with sponsiveness
balminess carsickness haughtiness heartedness soreness naughtiness morbidness heartsickness suaveness goriness oxidants exhaustiveness inconspicuous cognisance hardheartedness subcontinents downheartedness bigheartedness intoxicants recognisance kindheartedness overconfidence admonishments exorbitance garnishments tenderheartedness warmheartedness accomplishments acknowledgments acknowledgements