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