Here's what rhymes with penumbrse.
                        
                        
                    
                                Words that almost rhyme with penumbrse
mumps  months  monks  nuts  pumps  jumps  lumps  bumps  dumps  mus  muss  humps  nus  once  thus  bus  cuts  pulse  cups  ducks  ducts  huts  pus  chunks  clumps  cults  fuss  guts  insults  bucks  busts  butts  cuffs  cusps  gusts  hunts  lusts  puffs  shuts  stumps  tufts  tusks  bunks  dusts  husks  junks  pulps  pups  ruts  shunts  sucks  trumps  buffs  cuss  dunce  results  adults  discuss  plus  flux  trucks  fronts  trunks  trusts  truss  adjusts  bluffs  crusts  crux  interrupts  stuffs  thrusts  beauteous  corrupts  disrupts  drunks  grunts  stunts  conducts  instructs  repulse  struts  consults  confronts  coconuts  obstructs  woodcuts  constructs  aqueducts  superfluous