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