Definition

1. Verb:
   • To erupt / To flare up: To happen or appear suddenly, violently, and with great intensity, often for a short duration. It describes a sudden, powerful onset.
   • To surge / To shoot up: To arise or increase abruptly and forcefully, typically describing emotions, movements, or physical sensations.

Usage Examples

• Verb:
  • Cơn đau đầu của anh ấy bột phát dữ dội. (His headache flared up violently.)
  • Một làn sóng phản đối bột phát trong đám đông. (A wave of protest erupted from the crowd.)
  • Cô ấy có những cảm xúc bột phát khó kiểm soát. (She has sudden, surges of emotion that are hard to control.)

Advanced Usage

• "bột phát" as an adjective (in compound structures): When used before a noun, it describes the noun's characteristic of being sudden and intense.
  • Đó là một hành động bột phát, thiếu suy nghĩ. (It was an impulsive action, lacking thought.)
  • Anh ấy là người có tính cách khá bột phát. (He is a person with a rather volatile temperament.)

Variants and Related Words

• Bộc phát (v): A very close synonym, also meaning to erupt or break out suddenly (e.g., of disease, conflict).
  • Chiến tranh bộc phát ở khu vực đó. (War broke out in that region.)

Synonyms

• Erupt: To burst out suddenly.
• Flare up: To suddenly become stronger or more violent.
• Surge: To increase suddenly and powerfully.
• Break out: To start suddenly (often for unpleasant things like fire, war, disease).

Related Idioms

• Hành động bột phát: Impulsive action.
  • Quyết định trong cơn hành động bột phát thường dẫn đến hối tiếc. (Decisions made in a moment of impulsive action often lead to regret.)

verb

1. To shoot up, to flare up violently
   • những cơn đau bột phát
     fits of shooting pain
   • tình cảm bột phát
     a sudden and intense feeling