abundant
adjective
there is abundant rainfall during the summer:
plentiful, copious, ample, profuse, rich, lavish, liberal, generous, bountiful, large, huge, great, bumper, overflowing, superabundant, infinite, inexhaustible, opulent, prolific, teeming;
in plenty, in abundance;
informal a gogo, galore;
South African, informal lank;
literary bounteous, plenteous.
▷antonyms scarce, sparse.