Here's what rhymes with niisit.
                        
                        
                    
                                Words that almost rhyme with niisit
licit  viscid  cleavage  easement  meanest  peanut  sicut  neatest  meekest  reedit  secret  deepest  cheapest  regent  weakest  keenest  leaflet  leant  piquant  tliat  sealant  theist  sheerest  leanest  realest  beechnut  meagerest  eagerest  shiest  serest  recent  decent  sweetest  appeasement  antient  chiefest  machinist  seulement  steepest  cleanest  bleakest  fleetest  reshipped  seafront  serenest  messiest  puniest  sleekest  gamiest  liefest  sliest  mousiest  treatment  agreement  achievement  frequent  bereavement  impeachment  indecent  sentient  decedent  briefest  mendicant  sequenced  benignant  sapient  preachment  gaudiest  pointillist  wiliest  corniest  chariest  mangiest  obscenest  uncleanest  laciest  tangiest  woodenest  convenient  concealment  infrequent  bafflement  completest  impalement  fruitiest  untidiest  wintriest  pastiest  scaliest  unwariest  maltreatment  defilement  mistreatment  intercollegiate  enfeeblement  ennoblement  insentient  orthopedist  enjambement  beguilement  discreetest  orthopaedist  pantomimist  paltriest  revilement  cajolement  regalement  sultriest  crispiest  unhandiest  unmanliest  disagreement  inconvenient  pretreatment  disablement  underachievement  unloveliest  inconvenienced