1. (a.) Not competent; incapable; unable; inadequate; unfit\; wanting in adequate strength, power, capacity, means, qualifications, or the like.

2. (a.) Wanting the legal or constitutional qualifications; inadmissible; as, a person professedly wanting in religious belief is an incompetent witness in a court of law or equity; incompetent evidence.

3. (a.) Not lying within one's competency, capacity, or authorized power; not permissible.

awkward base blank cartridge bungling castrato clumsy defective deficient disqualified dud dull tool eunuch failing found wanting gauche gelding greenhorn ill-equipped ill-fitted ill-furnished ill-provided ill-qualified imperfect impotent inadequate incapable incapable of incomplete ineffective ineffectual inefficient ineligible inept inexpert inferior insufficient invalid lacking little maladjusted maladroit mean mediocre mediocrity no conjuror not comparable not enough not equal to not in it not up to out of it petty shabby small too little trivial unable unable to unadapted unadjusted unarmed unendowed unequal to unequipped unfit unfitted ungifted unprovided unqualified unsatisfactory unsatisfying unskilled unskillful unsufficing unsuited untalented unworkmanlike useless wanting weakling