adjective
Etymology: Middle English, from Anglo-French & Latin; Anglo-French, from Latin impotent-, impotens, from in- + potent-, potens potent
Date: 14th century
1. not potent ; lacking in power, strength, or vigor ; helpless , unable to engage in sexual intercourse because of inability to have and maintain an erection, incapable of self-restraint ; ungovernable , impotent noun impotently adverb