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