An antisocial individual.
Opposed to social order or the principles of society; hostile toward society
Unwilling or unable to cooperate and associate normally with other people
Antagonistic, hostile, or unfriendly toward others; menacing
A person who is deficient.
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).