Here's what rhymes with humaness.
                        
                        
                    
                                manus  Words that almost rhyme with humaness
danish  womanish  tatamis  vagueness  oasis  wadis  matrix  basics  mutatis  brainless  dateless  caitiffs  plaintiffs  mosaics  papists  rapists  stateless  racists  cretaceous  remix  bassists  bracelets  spaceships  playlists  facelifts  lifebelts  affidavits  lectureships  escapists  archaists  quadratics