Here's what rhymes with uninventiveness.
inventiveness attentiveness inattentiveness retentiveness Words that almost rhyme with uninventiveness
festiveness effectiveness ineffectiveness offensiveness restiveness intensiveness pensiveness inoffensiveness defensiveness tenseness defectiveness extensiveness perceptiveness receptiveness deceptiveness denseness expensiveness impressiveness possessiveness suggestiveness unexpectedness apprehensiveness contentedness objectiveness obsessiveness inexpensiveness scarceness aggressiveness comprehensiveness penitence reticence connectedness expressiveness headmistress oppressiveness protectiveness celibates hesitance fetishists caribous residence repressiveness residents progressiveness collectivists disconnectedness embellishments counterintelligence