Here's what rhymes with proness.
                        
                        
                    
                                onus  lowness  bonus  slowness  coronas  cacophonous  Words that almost rhyme with proness
donas  aromas  comas  diplomas  gliomas  sarcomas  kimonos  dichotomous  lymphomas  carcinomas  granulomas  hematomas  locus  lotus  opus  loess  proneness  drollness  focus  notice  atrocious  bogus  bolus  foetus  modus  polis  doughnuts  poetess  ptosis  boneless  crocus  grownups  donuts  toneless  bolas  colas  hotness  ogress  oldness  togas  blowups  roebucks  goalless  cloacas  poets  hopeless  fibrosis  homeless  boldness  cirrhosis  coldness  ferocious  hostess  neurosis  rodents  locusts  meiosis  precocious  remoteness  nobleness  poultice  soulless  refocus  kopeks  oestrus  oestrous  opponents  prognosis  necrosis  proponents  sclerosis  hypnosis  psychosis  mitosis  embolus  cupolas  smokeless  deponents  holdups  weaponless  docents  pianolas  diagnosis  moments  thrombosis  acidosis  apoptosis  apotheosis  arteriosus  cyanosis  scoliosis  symbiosis  aponeurosis  quotients  gladiolus  halitosis  elopements  foments  snowbanks  sobriquets  cosmoses  violists  components  exponents  enrollments  amyloidosis  condolence  sarcoidosis  enrolments  enthronements  encroachments  leukocytosis  postponements  psychoneurosis  chiropodists  honeylocusts  erythematosus  phagocytosis  hydronephrosis  metempsychosis  misdiagnosis  cosmogonists  mononucleosis  arteriosclerosis