Here's what rhymes with igression.
                        
                        
                    
                                session  aggression  cession  accession  oppression  regression  repression  recession  digression  expression  depression  impression  possession  profession  compression  discretion  succession  concession  confession  procession  progression  suppression  obsession  secession  decompression  intercession  transgression  indiscretion  retrogression  dispossession  Words that almost rhyme with igression
lesson  lessen  resin  leaven  seven  heaven  eleven  lemon  reckon  leaden  section  collection  election  mention  tension  correction  weapon  pension  threaten  erection  freshman  lengthen  melon  felon  heron  question  attention  direction  connection  exception  selection  affection  chairman  reception  rejection  brethren  connexion  retention  resection  tendon  ejection  ascension  dentin  headman  pepsin  reelection  declension  headmen  pectin  protection  conception  extension  infection  perception  reflection  convention  detection  dimension  injection  invention  objection  perfection  prevention  rebellion  contention  projection  recollection  redemption  resurrection  strengthen  complexion  deception  deflection  detention  dissection  exemption  inception  convection  defection  dissension  inflection  dejection  pretension  henchmen  preemption  redirection  reflexion  sexton  intention  suggestion  inspection  apprehension  intestine  suspension  congestion  digestion  insurrection  subjection  ingestion  distension  indirection  comprehension  hypertension  intersection  contraception  imperfection  predilection  condescension  disaffection  distention  inattention  abstention  disconnection  interception  watermelon  intervention  introspection  misconception  contravention  disinfection  indigestion  interconnection  circumspection  misapprehension