Here's what rhymes with umple.
                        
                        
                    
                                rumple  crumple  Words that almost rhyme with umple
umbel  humble  tumble  jumble  rumble  fumble  mumble  bumble  gumball  bundle  crumble  stumble  grumble  frontal  trundle  prefrontal  disgruntle  appal  couple  suppl  supple  tuple  rappel  pummel  tamale  awol  double  muscle  subtle  uncle  tunnel  bubble  puzzle  bustle  funnel  muzzle  rubble  shovel  shuttle  autumnal  buckle  chuckle  muddle  nuptial  puddle  rustle  shuffle  tional  hovel  huddle  hustle  knuckle  muffle  mussel  publ  ruffle  cuddle  cudgel  juggle  suckle  tussle  caecal  runnel  uncial  guzzle  nuzzle  gunnel  tousle  fuddle  jugful  tubful  tumbrel  mugful  trouble  jungle  fungal  triumphal  colourful  ductile  stubble  ductal  lustful  scuffle  scuttle  smuggle  subtile  phrasal  pustule  decouple  snaffle  snuggle  truffle  bungle  playable  truckle  uncouple  duckbill  lungful  snuffle  addable  cupsful  struggle  crustal  rebuttal  conformal  friable  dirigible  redouble  trustful  reshuffle  vocable  befuddle  unbuckle  acquirable  flyable  beatable  tamable  kerfuffle  pinocle  bestowal  damnable  peduncle  thermocouple  prenuptial  attachable  nonvocal  unplayable  vincible  oversubtle  honeysuckle  suboptimal  carbuncle  nonviable  filtrable  unnameable  duodecimal  ignitable  unlikable  dividable  unloveable  conformable  antifungal  distrustful  uncharitable  mistrustful  unbridgeable  containable  granduncle  heptagonal  imperishable  subcortical  imperturbable  exploitable  unarguable  compoundable  indissoluble  translatable  transmutable  untranslatable  indemonstrable