Here's what rhymes with imperatives.
comparatives Words that almost rhyme with imperatives
relatives genitives negatives sedatives sensitives executives menaces penances reckonings decilitres censuses crevices necklaces plexuses presences crevasses contemplatives hairbrushes nexuses preventatives leopardesses necklacings shellackings monetises apprentices questionings quintessences negliges representatives remembrances consensuses adolescences millionairesses conspectuses demonetises assemblages acceptances prospectuses convalescences