Lacking something essential; often construed with in.
Insufficient or inadequate in amount.
Of a number n, Having the sum of divisors σ(n)<2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n).
A person who is deficient.
Restricted, small, few, not plentiful.
With certain (often specified) limits placed upon it.
An express train that only halts at a limited number of stops.