Here's what rhymes with spiritis.
                        
                        
                    
                                Words that almost rhyme with spiritis
spirituous  spiritless  fierceness  piggishness  jinrickshas  jinrikshas  certificates  precipitous  ubiquitous  iniquitous  siliceous  duplicitous  priggishness  impishness  skittishness  derisiveness  griminess  filminess  willingness  litigants  permissiveness  submissiveness  explicitness  serendipitous  implicitness  significance  vindictiveness  indigents  cliquishness  coincidence  distinctiveness  restrictiveness  descriptiveness  insignificance