Lacking individuality.
Of unknown name; whose name is withheld
Without any name acknowledged of a person responsible
Lacking a name; not named, for example an animal not assigned to any species.
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.