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.
not perfect
belonging to a tense of verbs used in describing a past action that is incomplete or continuous
known or expected to be polyphyletic, as of a form taxon.
unisexual: having either male (with stamens) or female (with pistil) flowers, but not with both.
something having a minor flaw
a tense of verbs used in describing a past action that is incomplete or continuous
to make imperfect