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