ineffectual

This term describes a failure of outcome or capacity, carrying a heavy connotation of inadequacy. When applied to actions or policies, it suggests a gap between the intended goal and the actual result, implying that the effort was wasted or poorly designed. It is more clinical and critical than simply saying something did not work.

When describing a person, the word shifts toward a critique of character or competence. It paints a picture of someone who lacks the willpower, authority, or decisiveness to lead, often evoking an image of helplessness or fragility. This distinguishes it from "inefficient," which refers to a waste of resources rather than a total lack of potency.