inability
lack of ability / incapacity / incompetence
Noun
pl: inabilities
This term describes a deficit in capacity, whether that deficit is physical, mental, or legal. It carries a neutral to negative tone, focusing on the gap between a required skill and the actual capability of the individual. In legal contexts, the word shifts from a lack of skill to a lack of authority or qualification. It denotes a formal barrier that prevents an action from being valid or permissible under the law.