Insufficient or inadequate in amount.
Lacking something essential; often construed with in.
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.
Plentifully, abundantly.
Full of (mostly unpleasant or harmful things).
Abounding; present in large numbers, plentiful.
Widespread, common, prevalent, current (mainly of unpleasant or harmful things).