Here's what rhymes with ostentas.
                        
                        
                    
                                Words that almost rhyme with ostentas
hostages  articles  offices  obstacles  artisans  shortages  orchestras  arsenals  tortoises  portages  homages  fontanels  ottomans  particles  provinces  partisans  cartridges  mortgages  oracles  orbitals  constables  hominids  charlatans  harnesses  forages  ordinals  possibles  copulas  corollas  portables  promises  formulas  performances  cardinals  barnacles  gondolas  porcelains  porpoises  automatons  carnivals  domiciles  marginals  solubles  coracles  marquesses  corpuses  ptarmigans  corpuscles  accomplices  abdominals  probables  phenomenons  thesauruses  pronominals  teleconferences  antiparticles  cosmopolitans  metalanguages