INSUFFICIENT

insufficient, deficient

(adjective) of a quantity not able to fulfill a need or requirement; “insufficient funds”

Source: WordNet® 3.1

Etymology

Adjective

insufficient (comparative more insufficient, superlative most insufficient)

Not sufficient.

Synonyms

• unsufficient

Source: Wiktionary

In`suf*fi"cient, a. Etym: [L. insufficiens, -entis. See In- not, and Sufficient.]

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.

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.

Source: Webster’s Unabridged Dictionary 1913 Edition