'Impotent' definitions:

Definition of 'impotent'

From: WordNet
adjective
Lacking power or ability; "Technology without morality is barbarous; morality without technology is impotent"- Freeman J.Dyson; "felt impotent rage" [ant: potent, stiff, strong]
adjective
(of a male) unable to copulate [ant: potent, virile]

Definition of 'Impotent'

From: GCIDE
  • Impotent \Im"po*tent\, n. One who is impotent. [R.] --Shak. [1913 Webster]

Definition of 'Impotent'

From: GCIDE
  • Impotent \Im"po*tent\, a. [F. impotent, L. impotens, -entis; pref. im- not + potens potent, powerful. See Potent.]
  • 1. Not potent; wanting power, strength. or vigor. whether physical, intellectual, or moral; deficient in capacity; destitute of force; weak; feeble; infirm. [1913 Webster]
  • There sat a certain man at Lystra, impotent inhis feet. --Acts xiv. 8. [1913 Webster]
  • O most lame and impotent conclusion! --Shak. [1913 Webster]
  • Not slow to hear, Nor impotent to save. --Addison. [1913 Webster]
  • 2. Wanting the power of self-restraint; incontrolled; ungovernable; violent. [1913 Webster]
  • Impotent of tongue, her silence broke. --Dryden. [1913 Webster]
  • 3. (Med.) Wanting the power of procreation; unable to copulate; also, sometimes, sterile; barren; specifically, in males: unable to achieve or sustain a penile erection. [1913 Webster +PJC]

Synonyms of 'impotent'

From: Moby Thesaurus