Here's what rhymes with imprissonment.
                        
                        
                    
                                Words that almost rhyme with imprissonment
imprisonment  ligament  dissonant  filament  belittlement  participant  militant  predicament  vigilant  virulent  littlest  medicament  sycophant  legitimate  coincident  silicate  discriminant  empiricist  militarist  precipitant  visitant  ministrant  nimblest  timpanist  ficklest  difficult  ambivalent  indiscriminate  omnipotent  simulate  stimulant  abolitionist  individuate  nonparticipant  nonvirulent  cheerfullest  nonmilitant  equivalent  magnificent  particulate  inarticulate  grandiloquent  dissimulate  prohibitionist  coalitionist  gesticulate  exhibitionist  nonequivalent