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