01 a. Wanting, to make up completeness; wanting, as regards a requirement; not sufficient; inadequate; defective; imperfect; incomplete; lacking;…
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1.
Wanting, to make up completeness; wanting, as regards a requirement; not sufficient; inadequate; defective; imperfect; incomplete; lacking; as, deficient parts; deficient estate; deficient strength; deficient in judgment.“The style was indeed deficient in ease and variety.” — Macaulay.
Phrases & compounds
Deficient number —
See under Abundant.