Here's what rhymes with retrogressionist.
expressionist impressionist Words that almost rhyme with retrogressionist
pessimist feminist relevant specialist therapist prejudiced resonant baronet redolent tepidest definite delicate regiment affectionate irrelevant requisite decadent preeminent gentlest petulant pleasantest unprejudiced perfectionist polemicist eugenicist carefullest restfullest settlement deficit prevalent sediment desolate negligent tenement merriment celebrant centralist geneticist pestilent registrant secondment metricate intelligent sentiment indefinite antecedent prerequisite detriment testament malevolent nonresident resettlement anesthetist nonspecialist development experiment embarrassment temperament benevolent impediment unintelligent envelopment imperilment redevelopment embezzlement integument presentiment underdevelopment