Sentimentality rhymes with:
instrumentality, instrumentality, centrality, instrumentality, centrality, instrumentality, centrality, immortality, instrumentality, banality, bestiality, centrality, collegiality, conditionality, constitutionality, criminality, cyclicality, eventuality, functionality, heterosexuality, illegality, immorality, immortality, impartiality, individuality, informality, instrumentality, materiality, mutuality, originality, personality, plurality, principality, proportionality, punctuality, rationality, speciality, technicality, venality