Smidgen

Antonyms of smidgen:
abundance, barrel, boatload, bucket, bundle, bushel, deal, fistful, gobs, heaps, lashings, loads, lot, mass, mess, mountain, much, oodles, passel, peck, pile, plenty, potful, profusion, quantity, raft, reams, scads, stack, wad, wealth, volume, bonanza, embarrassment, excess, overabundance, overage, overflow, overkill, overmuch, oversupply, superabundance, superfluity, surfeit, surplus, chunk, hunk, lump, slab.