grandiose

1 large and impressive in size, grandeur, extent, or conception a grandiose plan to upgrade the entire interstate highway system in 10 years Synonyms august, baronial, epic, gallant, glorious, grand, heroic (also heroical), Homeric, imperial, imposing, magnific, magnificent, majestic, massive, monumental, noble, proud, regal, royal, splendid, statelyRelated Words colossal, monstrous, prodigious, stupendous, tremendous; kingly, lordly, princely, queenly; awesome, awful, cosmic (also cosmical), sublime, wondrous; formidable, impressive, prepossessing, redoubtable; apocalyptic (also apocalyptical), inflated, operatic, overblown, pompous; marvelous (or marvellous), superb, terrific, wonderful; extravagant, lavish, luxurious, opulent, palatial, palatine, sumptuous; gorgeous, resplendent, splendiferous; extraordinary, killer, remarkable, sensational, striking; celestial, divine, heavenlyNear Antonyms lowly, modest, unprepossessing; average, common, mediocre, ordinary, run-of-the-mill, second-rate; abject, mean, meretricious, shabby, sordid; insignificant, measly, paltry, petty, puny, trifling, trivialAntonyms humble, unheroic, unimposing, unimpressive

2 self-consciously trying to present an appearance of grandeur or importance made some grandiose claim that she was the descendant of a French princess Synonyms affected, pretentious, highfalutin (also hifalutin), high-minded, la-di-da (also la-de-da or lah-de-dah or lah-dee-dah or lah-di-dah), ostentatious, pompous, snippyRelated Words airy, grandiloquent, high-flown, high-sounding, high-toned, sententious; arrogant, bumptious, complacent, conceited, egoistic (also egoistical), egotistic (or egotistical), high-and-mighty, high-handed, high-hat, hoity-toity, imperious, important, overweening, presumptuous, prideful, proud, self-asserting, self-assertive, self-centered, self-complacent, self-conceited, self-important, self-obsessed, self-pleased, self-satisfied, smug, uppity, vain, vainglorious; self-aggrandizing, self-dramatizing, self-glorifying, self-promoting; cavalier, disdainful, haughty, lordly, snobbish, snobby, stuck-up, supercilious, superior; confident, self-assured, self-confident, sure; boastful, braggart, bragging; aggressive, assertive, audacious, bold, brassy, cheeky, cocky, forward, impudent, insolent, rude; flamboyant, flashy, flaunting, garish, gaudy, glitzy, showy, splashyNear Antonyms demure, down-to-earth, homely, humble, lowly, meek, retiring, unassertive, unassuming; bashful, diffident, mousy (or mousey), overmodest, passive, quiet, reserved, shy, timidAntonyms modest, unpretentious