Insufficient In`suf*fi"cient, a. [L. insufficiens, -entis. See {In-} not, and {Sufficient}.] [1913 Webster] 1. Not sufficient; not enough; inadequate to any need, use, or purpose; as, the provisions are insufficient in quantity, and defective in quality. ``Insufficient for His praise.'' --Cowper. [1913 Webster]

2. Wanting in strength, power, ability, capacity, or skill; incompetent; incapable; unfit; as, a person insufficient to discharge the duties of an office.

Syn: Inadequate; scanty; incommensurate; unequal; unfit; incompetent; incapable; inefficient. [1913 Webster]

The Collaborative International Dictionary of English. 2000.