Definition

1. Verb:
   • To lose one's reason/mind; to become insane: "mất trí" describes the state of losing mental faculties, including the ability to think, reason, and judge clearly. It often implies a severe mental disorder or insanity.
   • To become demented: In a medical or clinical context, it can refer to the onset of dementia or a similar degenerative cognitive condition.

Usage Examples

• Verb:
  • Sau cú sốc quá lớn, ông ấy dường như đã mất trí. (After the tremendous shock, he seemed to have lost his mind.)
  • Căn bệnh khiến bà cụ dần mất trí. (The illness caused the old woman to gradually become demented.)
  • Đừng hành động như một kẻ mất trí! (Don't act like a madman!)

Advanced Usage

• "mất trí nhớ": This is a compound phrase meaning "to lose one's memory" or "to have amnesia." It specifies the loss of memory rather than general reasoning.

  • Sau tai nạn, anh ấy bị mất trí nhớ tạm thời. (After the accident, he suffered from temporary amnesia.)

• Used as a euphemism (lối nói kiêng tránh) for "điên" (crazy/insane), making it slightly less harsh.

  • Người ta nói ông ta đã mất trí. (People say he has gone insane.)

Variants and Related Words

• Kẻ mất trí / Người mất trí (noun): A madman; a person who has lost their mind.

  • Phải cách ly kẻ mất trí đó ra. (That madman must be isolated.)

• Chứng mất trí (noun): Dementia (the medical condition).

  • Bệnh Alzheimer là một dạng chứng mất trí. (Alzheimer's disease is a form of dementia.)

• Điên (verb/adj): Crazy, insane. (A more direct and sometimes stronger synonym).

Synonyms

• Hóa điên: To go crazy.
• Loạn trí: To have a disturbed mind; to be mentally deranged.
• Điên cuồng: Frenzied, mad (often implying wild, uncontrolled behavior).

verb

1. to lose one's reason
   • nó mất trí
     He lost his reason