Large in number or quantity (especially of discourse):
— She took copious notes.

synonym: voluminous.

Roget 573: diffuse, profuse; wordy, verbose, largiloquent^†, copious, exuberant, pleonastic, lengthy; longsome^†, long-winded, longspun^†, long drawn out; spun out, protracted, prolix, prosing, maundering; circumlocutory, periphrastic, ambagious^†, roundabout; digressive; discursive, excursive; loose; rambling episodic; flatulent, frothy.    ... show more

Affording an abundant supply:
— Copious provisions.

synonyms: ample, plenteous, plentiful, rich.

Roget 639: sufficient, enough, adequate, up to the mark, commensurate, competent, satisfactory, valid, tangible.    measured; moderate etc. (temperate) 953.    full, etc. (complete) 52; ample; plenty, plentiful, plenteous; plenty as blackberries; copious, abundant; abounding etc. v.; replete, enough and to spare, flush; choke-full, chock-full; well-stocked, well-provided; liberal; unstinted, unstinting; stintless^†; without stint; unsparing, unmeasured; lavish etc. 641; wholesale.    rich; luxuriant etc. (fertile) 168; affluent etc. (wealthy) 803; wantless^†; big with etc. (pregnant) 161.    unexhausted^†, unwasted^†; exhaustless, inexhaustible.    ... show more