Vast in quantity or number, profuse, abundant; taking place on a large scale.
Full of thought, information, or matter; exuberant in words, expression, or style.
Having an abundant supply.
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.