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