Merriam-Webster Collegiate Dictionary - plentiful

 adjective  Date: 15th century  1. containing or yielding plenty a ~ land  2. characterized by, constituting, or existing in plenty  • ~ly adverb  • ~ness noun Synonyms:  ~, ample, abundant, copious mean more than sufficient without being excessive. ~ implies a great or rich supply peaches are ~ this summer. ample implies a generous sufficiency to satisfy a particular requirement ample food to last the winter. abundant suggests an even greater or richer supply than does ~ streams abundant with fish. copious stresses largeness of supply rather than fullness or richness copious examples of bureaucratic waste.