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