plentiful 22 antonyms and opposites of plentiful. Adj — Available in large quantities; abundant. Synonyms for plentiful abounding abundant adequate ample bountiful brimming comfortable copious enough fecund fertile fruitful galore generous lavish liberal luxuriant manysome numerous overflowing plenteous profuse prolific replete rich rife sufficient teeming thick wealthy Antonyms for plentiful bare barren deficient infertile insufficient lacking light meager minimal niggardly rare scant scarce skimpy slight small sterile stingy uncommon unfruitful unproductive wanting ← Back to the full definition of plentiful