Mental collapse refers to a sudden, severe deterioration of one's mental health, often leading to a breakdown or a state of emotional paralysis. There are several synonyms for mental collapse, including nervous breakdown, emotional breakdown, mental breakdown, and psychiatric breakdown. Other words that can be used to describe this state of severe emotional distress include mental exhaustion, meltdown, burnout, collapse, and crisis. These terms all denote a sudden, overwhelming sense of mental or emotional distress that can have serious physical and emotional consequences. Mental collapse is a serious condition that requires prompt attention and treatment from qualified mental health professionals.