Here's what rhymes with ousians.
                        
                        
                    
                                Words that almost rhyme with ousians
outguns  mountains  bowels  ounces  vowels  fountains  towels  pouches  dowels  vouches  howdahs  houses  thousands  councils  counsels  crouches  roundels  debauches  trowels  douses  louses  mouses  avouches  grouches  spouses  blouses  mouthfuls  spousals  housefuls  scoundrels  carousals  semivowels  disembowels