The term 'become unhinged' can be described by two crossword solutions: SNAP (4 letters) and DOORS (5 letters). SNAP is an informal term meaning to break suddenly, usually with a sharp sound. It is often used to describe a person's mental state when they become overwhelmed or agitated. DOORS is a metaphor for the idea of being open to new experiences and opportunities. It implies that when someone becomes unhinged, they are no longer able to take advantage of these opportunities.