A condition characterized by lack of normal functioning of physical or mental processes:
The quality or condition of being inadequate.
Lack of capacity, power, or fitness; disability
The condition or fact of being insufficient or falling short:
Gradual return to health and strength after illness.
The definition of impuissance is weakness, whether it be physical or mental.
Find another word for helplessness. In this page you can discover 31 synonyms, antonyms, idiomatic expressions, and related words for helplessness, like: incapability, powerlessness, disorder, illness, inability, impotence, inadequacy, ineffectiveness, ineffectuality, uselessness and self-hatred.