Here's what rhymes with underagent.
                        
                        
                    
                                reagent  Words that almost rhyme with underagent
latent  blatant  straightened  supernatant  patient  arrangement  payment  adjacent  vacant  nascent  assailant  raiment  arraignment  underpayment  attainment  basement  placement  amazement  pavement  abatement  claimant  safest  bravest  complacent  complainant  vagrant  abasement  basest  debasement  divalent  plainest  complaisant  palest  degassed  sanest  vainest  plainchant  tamest  gamest  fainest  halest  urbanest  statement  engagement  entertainment  latest  impatient  platelet  flagrant  fragrant  rearrangement  repayment  bracelet  covalent  curtailment  derangement  faintest  understatement  effacement  emplacement  entrainment  intranet  prepayment  wavefront  nonpayment  shamefaced  derailment  inhalant  lakefront  sadist  cadenced  defacement  obtainment  prearrangement  anapest  chastest  detainment  nonadjacent  opaqued  unsafest  inanest  greatest  replacement  affidavit  containment  enslavement  estrangement  ascertainment  entailment  misstatement  escapement  misplacement  straightest  disarrangement  encasement  quaintest  edutainment  ordainment  subbasement  staidest  insanest  unchastest  displacement  disengagement  restatement  overstatement  infotainment  humanest  sedatest  reinstatement