54 synonyms for a lot such as all, acres, and all in all. A lot is an adverb, and its antonyms are bit and few.
Acres, all, all in all, altogether, batch, bulk, bunch, bundle, cargo, clump, collection, considerably, emphatically, entirely, exceedingly, extremely, galore, gobs, great deal, heaps, highly, immensely, incredibly, infinitely, intensely, largely, legion, legions, load, loads, lots, markedly, mass, notably, oodles, plethora, powerfully, reams, scad, scads, slathers, slew, stock, store, substantially, tons, totally, tremendously, volume, wad, whole, wholesale, and wholly.