Here's what rhymes with diffusivities.
activities festivities acclivities nativities proclivities declivities captivities collectivities Words that almost rhyme with diffusivities
utilities affinities similes villainies facilities abilities sympathies dignities divinities symphonies asymmetries civilities tyrannies litanies infinities stupidities bigotries trinities disabilities hostilities liabilities iniquities facsimiles debilities incivilities asininities possibilities antiquities efficiencies exigencies aborigines antipathies indignities epiphanies inabilities readabilities capabilities deficiencies probabilities conspiracies antitheses impossibilities implausibilities malignancies inefficiencies improbabilities responsibilities contingencies delinquencies incompatibilities