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