Here's what rhymes with undeficient.
                        
                        
                    
                                efficient  deficient  officiant  sufficient  inefficient  proficient  maleficent  coefficient  insufficient  beneficent  omniscient  immunodeficient  Words that almost rhyme with undeficient
positioned  visioned  listened  envisioned  petitioned  stiffened  auditioned  commissioned  christened  partitioned  glistened  provisioned  transitioned  conditioned  imprisoned  unconditioned  decommissioned  propositioned  recommissioned  reminiscent  requisitioned  rechristened  preconditioned  reconditioned  diffident  inherent  shipment  fittest  flippant  sickest  disenchant  fitment  hiccoughed  hippest  spirit  visit  distant  limit  minute  assistant  nearest  persistent  biggest  coherent  resistant  ticket  dearest  digit  existent  inhibit  pigment  richest  adherent  frigate  insistent  millet  picket  billet  fiercest  resilient  skillet  bigot  delimit  oviduct  pendent  wicket  demised  midget  snippet  spigot  civet  deliquescent  tippet  bewitchment  devilment  dimmest  jennet  shrillest  slickest  slimmest  whippet  dispirit  equipment  brilliant  witnessed  indifferent  simplest  delinquent  enrichment  indignant  intermittent  prohibit  stringent  cricket  illicit  incoherent  pivot  biscuit  distanced  rivet  severest  grimaced  endearment  sincerest  swiftest  gimlet  gymnast  limpet  queerest  encystment  grimmest  stiffest  weirdest  divot  inspirit  reshipment  commitment  consistent  fulfillment  malignant  fulfilment  infringement  nonexistent  strictest  astringent  enlistment  triplet  violinist  abridgment  cleverest  impingement  sublimate  abridgement  coexistent  brisket  preterit  privet  trinket  trivet  explicit  contingent  implicit  inconsistent  equidistant  complicit  palimpsest  transshipment  outdistanced  nonresistant  nonmalignant  reenlistment