| Insufficient 1. (a.) Not enough; inadequate to any need, use, or purpose; as, the provisions are insufficient in quantity, and defective in quality. 2. (a.) Wanting in strength, power, ability, capacity, or skill; incompetent; incapable; unfit; as, a person insufficient to discharge the duties of an office. Thesaurus Entries asymmetric, base, defective, deficient, disappointing, disheartening, disparate, displeasing, disproportionate, dissatisfactory, failing, found wanting, half-assed, ill-matched, ill-sorted, imperfect, inadequate, incommensurate, incompetent, incomplete, inferior, irregular, lacking, little, maladroit, mean, mediocre, minus, mismatched, not comparable, not enough, not good enough, not in it, odd, out of it, out of proportion, petty, scant, scanty, scarce, shabby, short, short of, shy, skew, skewed, small, too little, trivial, unequal, unequal to, uneven, unfulfilling, ungratifying, unqualified, unreached, unsatisfactory, unsatisfying, unskillful, unsufficing, wanting |