substantive

sufficiently large in size, amount, or number to merit attention they've made substantive changes in the nightly newscast Synonyms biggish, good, goodly, handsome, healthy, largish, major, respectable, significant, sizable (or sizeable), substantial, considerable, tidyRelated Words 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 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 inconsequential, inconsiderable, insignificant, insubstantial, negligible, nominal