Synonyms for Plentiful (same or very similar meaning)
WordNet sense 1 (producing in abundance):
bountifulWordNet sense 2 (productive or conducive to producing in abundance):
fruitfulWordNet sense 3 (affording an abundant supply):
ample, copious, plenteous, richWordNet sense 4 (present in great quantity):
abundantFrom the ODE community, based on WordNetadd/edit