Here's what rhymes with undigested.
                        
                        
                    
                                bested  attested  detested  divested  wrested  guested  untested  retested  pretested  unattested  quested  molested  unmolested  uncontested  rearrested  requested  reinvested  Words that almost rhyme with undigested
vestige  respite  cesspit  destined  pelted  dented  betted  jetted  texted  ejected  scented  bedded  dejected  tepid  undetected  vented  wetted  abetted  netted  whetted  vetted  stetted  rejected  wretched  dreaded  assented  unprotected  demented  fretted  indented  repented  dissented  interjected  leaded  sweated  defected  presaged  breaded  bedimmed  gelid  trisected  accepted  prevented  respected  subjected  unexpected  embedded  inspected  lamented  unaffected  appended  deflected  excepted  unconnected  welded  beheaded  imbedded  intersected  mended  resected  unsuspected  redirected  relented  uncorrected  gazetted  preempted  uncollected  uninfected  wended  brevetted  fended  prospected  stenciled  headwind  trellised  trended  vended  bayonetted  coquetted  facetted  pirouetted  unscented  kennelled  sledded  towheaded  cossetted  indirected  unprecedented  consented  regretted  distended  exempted  disaffected  resurrected  unattended  unintended  disparaged  misdirected  polarised  portended  regimented  introspected  vignetted  alimented  retreaded  expended  contended  commended  disconnected  discontented  interconnected  ornamented  recollected  befriended  complemented  complimented  disoriented  silhouetted  sulphuretted  reinvented  unrepresented  reconnected  solemnised  disrespected  depolarised  reinspected  ricochetted  retrospected  burglarised  transcended  circumvented  underrepresented  vulgarised  comprehended  misrepresented