Another word for much
To a great degree or extent
important, weighty, notable, signal, considerable, prominent, memorable, salient, momentous, stirring, eventful, serious, urgent, pressing, critical, paramount, principal, leading, significant, telling, trenchant, first-rate*, high-flying*, in the front rank*.
In great quantity
full, many, very many, abundant, satisfying, enough, sufficient, adequate, considerable, substantial, ample, everywhere, copious, voluminous, plentiful, profuse, complete, lavish, generous, immeasurable, endless, countless, fabulous, extravagant, preposterous, overwrought, overcharged, hell of a lot*, all over the place*, no end*.
a great quantity, abundance, quantities, a great deal, sufficiency, riches, wealth, amplitude, plethora, volume, very much, breadth, copiousness, plentifulness, fullness, profuseness, exuberance, completeness, fruitfulness, lavishness, generousness, lot*, great lot*, quite a bit*, gobs*, thousands*, tons*, oodles*; see also plenty.
Another word for muchnoun
A great deal:abundance, mass, mountain, plenty, profusion, wealth, world. (Informal) barrel, heap, lot, pack, peck2, pile. (Regional) power, sight. See big