impotent: Meaning and Definition of

im•po•tent

1. not potent; lacking power or ability.
2. utterly unable (to do something).
3. without force or effectiveness.
4. lacking bodily strength or physically helpless.
5. (of a male) unable to attain or sustain a penile erection.
6. (esp. of a male) sterile.
7. without restraint.

1. an impotent person: therapy for sexual impotents.