Here's what rhymes with fundamentan.
                        
                        
                    
                                dentin  Words that almost rhyme with fundamentan
tendon  intention  intervention  momentum  hempen  indention  contravention  distention  inattention  abstention  circumvention  subvention  supervention  nonintervention  referendum  mention  attention  tension  dimension  pension  ascension  melon  pectin  gentian  lepton  destine  penman  pennon  nelson  direction  section  connection  seven  heaven  perception  possession  session  affection  chairman  convention  invention  lesson  perfection  weapon  connexion  contention  intestine  threaten  detention  lemon  lessen  reckon  resin  cession  dissension  condescension  headman  leaden  leaven  pepsin  declension  felon  headmen  henchmen  heron  sexton  beckon  chevron  deaden  henchman  redden  vegan  bellman  deafen  hessian  kelvin  hellion  collection  election  protection  conception  infection  profession  selection  aggression  correction  detection  eleven  injection  objection  prevention  accession  brethren  concession  confession  hypertension  intersection  oppression  procession  projection  retention  suspension  complexion  deception  dissection  erection  inception  obsession  convection  defection  ejection  freshman  imperfection  intercession  dejection  distension  lengthen  pretension  indirection  interception  watermelon  confection  freshen  interjection  penguin  stepson  bisection  selectman  headsman  pressman  helpline  question  depression  exception  extension  impression  reflection  compression  inspection  rebellion  reception  rejection  succession  apprehension  comprehension  progression  regression  suppression  congestion  deflection  digestion  insurrection  recession  resection  secession  subjection  contraception  inflection  ingestion  digression  disaffection  interconnection  disconnection  preemption  redirection  reflexion  abjection  concretion  inflexion  reinvention  rhododendron  repossession  refection  gremlin  trisection  suggestion  discretion  recollection  redemption  repression  resurrection  strengthen  exemption  introspection  misconception  predilection  transgression  decompression  disinfection  indigestion  reelection  circumspection  dispossession  misdirection  preconception  reinfection  nonaggression  prepossession  reprehension  genuflection  expression  indiscretion  misapprehension  retrogression  incomprehension  retrospection  delicatessen  autosuggestion