[im.po.tent] adj [ME, fr. MF & L; MF, fr. L impotent-, impotens, fr. in- + potent-, potens potent] (14c) 1 a: not potent: lacking in power, strength, or vigor: helpless b: unable to copulate; broadly: sterile--usu. used of males
2. obs: incapable of self-restraint: ungovernable -- impotent n -- im.po.tent.ly adv