Here's what rhymes with humanitarlanism.
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mizzen mission rhythm arisen risen given vision listen prison emission omission remission fission logarithm audition riven addition commission driven edition permission admission algorithm ambition ammunition cognition incision revision clinician ignition apparition derision magician envision imprison rendition logician stiffen glisten munition rescission position condition decision division opposition tradition physician provision transition petition precision abolition collision intuition nutrition partition politician submission excision forgiven musician tuition admonition attrition erudition fruition sedition technician volition dentition striven manumission rhetorician ebullition prevision readmission definition competition composition recognition television transmission acquisition proposition repetition suspicion coalition inhibition prohibition imposition supposition circumcision demolition apposition contrition indecision intermission paroxysm patrician cataclysm premonition academician dietitian tactician disposition supervision deposition exhibition subdivision malnutrition mathematician preposition requisition inquisition precondition redefinition disquisition electrician statistician theoretician imprecision expedition exposition superstition transposition extradition interposition superposition obstetrician pediatrician diagnostician decomposition juxtaposition indisposition presupposition predisposition superimposition wisdom serum theorem cecum gingham system kingdom victim dictum gypsum fearsome winsome symptom pilgrim ecosystem