impotence
noun /ˈɪmpətəns/
  /ˈɪmpətəns/
[uncountable]- the fact of being unable to change things or influence a situation synonym powerlessness- a feeling of impotence in the face of an apparently insoluble problem
 
- a condition in which a man is unable to achieve an erection and is therefore unable to have full sex- male impotence