Perfectionist rhymes with:
obstructionist, abolitionist, conservationist, contortionist, exhibitionist, expressionist, impressionist, isolationist, obstructionist, abolitionist, accompanist, antagonist, arsonist, botanist, calvinist, chauvinist, communist, conservationist, contortionist, determinist, exhibitionist, expressionist, feminist, illusionist, impressionist, isolationist, jansenist, neoplatonist, obstructionist, organist, platonist, protagonist, unionist