monumental

1 large and impressive in size, grandeur, extent, or conception a monumental misunderstanding that had far-reaching consequences Synonyms of monumental august, baronial, epic, gallant, glorious, grandiose, heroic (also heroical), Homeric, imperial, imposing, magnific, magnificent, majestic, massive, grand, noble, proud, regal, royal, splendid, statelyWords Related to monumental 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 of monumental 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 of monumental humble, unheroic, unimposing, unimpressive

2 unusually large serves a monumental sundae that usually requires three people to finish it Synonyms of monumental astronomical (also astronomic), Brobdingnagian, bumper, colossal, cosmic (also cosmical), cyclopean, elephantine, enormous, galactic, gargantuan, giant, gigantesque, gigantic, grand, herculean, heroic (also heroical), Himalayan, humongous (also humungous), immense, jumbo, king-size (or king-sized), leviathan, mammoth, massive, mega, mighty, monster, monstrous, huge, mountainous, oceanic, pharaonic, planetary, prodigious, super, super-duper, supersize, supersized, titanic, tremendous, vast, vasty, walloping, whacking, whoppingWords Related to monumental big, bulky, considerable, extensive, good, goodly, great, gross, handsome, hefty, hulking, largish, major, outsize (also outsized), overgrown, oversize (or oversized), sizable (or sizeable), substantial, tidy, voluminous; august, formidable, grandiose, imposing, lofty, majestic; cavernous, monolithic, overwhelming, staggering, stupendous, towering; boundless, immeasurable, infiniteNear Antonyms of monumental little, mini, petite, pint-size (or pint-sized), puny, small, smallish, undersized (also undersize); dinky, dwarfish, half-pintAntonyms of monumental bantam, bitty, diminutive, infinitesimal, Lilliputian, little bitty, micro, microminiature, microscopic (also microscopical), midget, miniature, minuscule, minute, pocket, pygmy, teensy, teensy-weensy, teeny, teeny-weeny, tiny, wee

3 having great meaning or lasting effect the moon landing was seen as a monumental event in human history Synonyms of monumental big, consequential, earthshaking, earth-shattering, eventful, historic, major, material, meaningful, momentous, important, much, significant, substantial, tectonic, weightyWords Related to monumental decisive, fatal, fateful, strategic; earnest, grave, heavy, serious, sincere; distinctive, exceptional, impressive, outstanding, prominent, remarkable; valuable, worthwhile, worthy; distinguished, eminent, great, illustrious, noble, notable, noteworthy, outstanding, preeminent, prestigious; famous, notorious, renowned; all-important, central, critical, crucial, essential, key, pivotal, seminal, vitalNear Antonyms of monumental paltry, petty, worthless; anonymous, nameless, obscure, uncelebrated, unknownAntonyms of monumental inconsequential, inconsiderable, insignificant, little, minor, negligible, slight, small, trifling, trivial, unimportant