Synonyms and Antonyms of substantial
1 having great meaning or lasting effect substantial changes to the school dress code that made a lot of people unhappy Synonyms of substantial big, consequential, earthshaking, earth-shattering, eventful, historic, major, material, meaningful, momentous, monumental, much, significant, important, tectonic, weightyWords Related to substantial 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 substantial paltry, petty, worthless; anonymous, nameless, obscure, uncelebrated, unknownAntonyms of substantial inconsequential, inconsiderable, insignificant, little, minor, negligible, slight, small, trifling, trivial, unimportant
2 of a size greater than average of its kind the amount he inherited was quite substantial, so he quit his job and set out to see the world Synonyms of substantial big, biggish, boxcar, bulky, considerable, goodly, grand, great, handsome, hefty, hulking, husky, largish, outsize (also outsized), oversize (or oversized), sizable (or sizeable), large, tidy, voluminousWords Related to substantial astronomical (also astronomic), Brobdingnagian, bumper, Bunyanesque, cavernous, colossal, cosmic (also cosmical), cyclopean, elephantine, enormous, galactic, gargantuan, gigantic, gross, hellacious, herculean, heroic (also heroical), Himalayan, huge, humongous (also humungous), immense, jumbo, king-size (or king-sized), leviathan, major, mammoth, massive, monolithic, monstrous, monumental, mountainous, pharaonic, prodigious, staggering, stupendous, super, super-duper, supersized, titanic, tremendous, vast, vasty, walloping, whacking, whopping; excessive, exorbitant, extravagant, extreme, immoderate, inordinate; abundant, ample, appreciable, copious, plentiful; fat, thick; capacious, commodious, roomy, spaciousNear Antonyms of substantial diminutive, half-pint, infinitesimal, Lilliputian, little-bitty, microminiature, microscopic (also microscopical), mini, miniature, minuscule, minute, pint-size (or pint-sized), pocket-size (also pocket-sized), pygmy, teensy, teensy-weensy, teeny, teeny-weeny, tiny, wee; petite, slender, slight, slim, thinAntonyms of substantial bantam, dinky, dwarf, dwarfish, little, puny, shrimpy, small, smallish, undersized (also undersize)
3 relating to or composed of matter the Land of Oz turned out to be a world of dreams, even less substantial than a rainbow Synonyms of substantial concrete, physical, materialWords Related to substantial bodily, carnal, corporal, corporeal, embodied, fleshly; apparent, appreciable, detectable, discernible (also discernable), noticeable, observable, palpable, perceptible, seeable, sensible, tangible, touchable, visible; objective, phenomenal; bulky, heavy, hefty, massive, ponderous, solid, weightyNear Antonyms of substantial bodiless, discarnate, disembodied, formless, incorporeal, unbodied; ethereal, insubstantial, unsubstantial; impalpable, imperceptible, insensible, intangible, invisible, unnoticeable; airy, diaphanous, gossamery, tenuous, thin, vaporous, wispish; metaphysical, spiritualAntonyms of substantial immaterial, nonmaterial, nonphysical
4 sufficiently large in size, amount, or number to merit attention there's been a substantial increase in attendance at girls' volleyball games ever since the start of their winning streak Synonyms of substantial biggish, good, goodly, handsome, healthy, largish, major, respectable, significant, sizable (or sizeable), considerable, substantive, tidyWords Related to substantial big, bulky, hefty, hulking, outsize (also outsized), oversize (or oversized), voluminous; astronomical (also astronomic), bumper, colossal, elephantine, enormous, gigantic, great, herculean, huge, immense, jumbo, king-size (or king-sized), mammoth, massive, monstrous, monumental, prodigious, titanic, tremendous, whoppingNear Antonyms of substantial measly, minute, paltry, petty, picayune, picayunish, piddling, puny, trifling, trivial, unimportant; marginal, meager (or meagre), slight; little, small, tiny, undersized (also undersize); bitty, diminutive, miniature, pint-size (or pint-sized), pocket, pocket-size (also pocket-sized), pygmy, smallishAntonyms of substantial inconsequential, inconsiderable, insignificant, insubstantial, negligible, nominal
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