<p><strong>adjective</strong></p><ul><li>affectedly grand or important; pompous: grandiose words.</li><li>more complicated or elaborate than necessary; overblown: a grandiose scheme.</li><li>grand in an imposing or impressive way.</li><li>Psychiatry: having an exaggerated belief in one's importance, sometimes reaching delusional proportions, and occurring as a common symptom of mental illnesses, as manic disorder.</li></ul><p><strong>Synonyms</strong></p><ul><li>extravagant</li><li>high-flown</li><li>splashy</li><li>flamboyant</li><li>affected</li><li>pretentious</li></ul>