impotent
This term describes a state of helplessness or a lack of efficacy. When applied to people or institutions, it conveys a sense of frustration and failure, suggesting that while the desire to act may exist, the actual capacity to produce a result is absent. In medical or chemical contexts, the word shifts from a lack of agency to a lack of strength or potency. It indicates that a substance is too weak to trigger the intended biological or chemical reaction, rendering it useless for its intended purpose.
Meanings
Lacking power, strength, or the ability to take effective action.
"The government remained impotent in the face of the growing economic crisis."
Unable to achieve an erection or have sexual intercourse.
"The patient was diagnosed as impotent due to a combination of psychological stress and physical illness."