august

1 having or showing a formal and serious or reserved manner unsurprisingly, the head of the bank is an august white-haired gentleman Synonyms dignified, distingué, distinguished, imposing, portly, solemn, staid, statelyRelated Words decorous, proper, seemly; grave, grim, po-faced [British], sober, somber (or sombre); aristocratic, elegant, elevated, handsome, lordly, magisterial, majestic, nobleNear Antonyms coarse, crass, crude, improper, indecent, uncouth, unseemly, vulgarAntonyms flighty, frivolous, giddy, goofy, silly, undignified

2 large and impressive in size, grandeur, extent, or conception an august golden anniversary celebration for the company Synonyms grand, baronial, epic, gallant, glorious, grandiose, 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