Main entry: impotent
Definition: lacking power or ability
Usage: Technology without morality is barbarous; morality without technology is impotent- Freeman J.Dyson; felt impotent rage
Antonyms: stiff, strong, potent
Definition: having a strong physiological or chemical effect
Antonyms: able
Definition: (usually followed by `to') having the necessary means or skill or know-how or authority to do something
Antonyms: effective, effectual, efficacious
Definition: producing or capable of producing an intended result or having a striking effect
Main entry: impotent
Definition: (of a male) unable to copulate