In`a*bil"i*ty (?), n. [Pref. in- not + ability: cf. F. inhabilet'e. See Able, and cf. Unable.]
The quality or state of being unable; lack of ability; want of sufficient power, strength, resources, or capacity.
It is not from an inability to discover what they ought to do, that men err in practice.
Syn. -- Impotence; incapacity; incompetence; weakness; powerlessness; incapability. See Disability.
© Webster 1913.