Here's what rhymes with niman.
                        
                        
                    
                                summon  yeomen  Words that almost rhyme with niman
anon  jejunum  oven  mutton  muffin  nubbin  unman  someone  sudden  button  cousin  dozen  onion  sullen  muslin  fuckin  gunman  coven  dudgeon  toughen  lumpen  mullion  piton  roughen  dubbin  kuchen  suction  dungeon  emulsion  luncheon  sultan  sunken  unction  globin  irruption  bludgeon  glutton  gulden  gumption  unbutton  bunion  scutcheon  dustman  function  assumption  corruption  induction  junction  drunken  eruption  percussion  tungsten  androgen  concussion  perdition  shrunken  avulsion  exciton  huntsman  escutcheon  impulsion  dustpan  scullion  decagon  stuntman  grunion  biathlon  discussion  consumption  reduction  combustion  conduction  deduction  compulsion  injunction  interruption  abduction  repulsion  resumption  seduction  convulsion  revulsion  semicolon  ragamuffin  caparison  production  instruction  conjunction  presumption  disruption  expulsion  malfunction  propulsion  compunction  subduction  repercussion  bellybutton  construction  destruction  introduction  dysfunction  obstruction  disjunction  transduction  liposuction  reproduction  reconstruction  deconstruction  overproduction  reintroduction  underproduction  misconstruction