ABUNDANT most nearly means:

ABUNDANT means existing in large quantity; plentiful or more than enough. Example: 'Water was abundant after the heavy rains.' The direct opposite is scarce, offered as a distractor to test whether you know the word's meaning rather than just a related topic. The related noun is ABUNDANCE. On synonym items, watch for an antonym placed among the choices — it is a common trap. ABUNDANT shares a root with 'abound,' meaning to be present in great numbers, reinforcing the sense of plentiful supply.