Synonyms of bombastic

2 Syllables
flamboyant, turgid, stilted, wordier, wordy, high-flown, ranting, pompous, windy, boastful, tumid, fustian, windbag, swollen
3 Syllables
redundant, euphuistic, big-talking, loudmouthed, peacockish, stylistic, fulsome, flowery, balderdash, flatulent, rhapsodic, verbose, pretentious, sonorous, long-winded, inflated, pleonastic, surcharged, dropsical, histrionic, puffed-up, high-sounding, grandiose, overblown, orotund, aureate
4 Syllables
highfalutin, hyperbolic, tautologous, ostentatious, magniloquent, grandiloquent, periphrastic, rhapsodical, self-applauding, hifalutin, rhetorical
5 Syllables
declamatory, high-falutin', oratorical, self-aggrandizing, overambitious
6 Syllables
overestimated