Incompetent1. (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.
Thesaurus Entries
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