volatility

• 指事物容易发生快速、不可预测的变化的性质，尤指物质、情绪或市场状况。

A noun referring to the quality of being subject to rapid, unpredictable change, especially in terms of substance, mood, or market conditions.

不可数

1. Tendency to vaporizeC1formalscientific

   The property of a substance to change readily from a solid or liquid state into a vapor.

   挥发性

   • The volatility of gasoline makes it dangerous near open flames.
   • Chemists measure the volatility of different solvents.
   • High volatility in a liquid means it evaporates quickly.

   反义词fixitystability

2. Unpredictable changeB2formal

   The trait of being unpredictably irresolute or subject to sudden, often drastic, change.

   波动性

   • The volatility of the stock market worried investors.
   • Political volatility in the region led to instability.
   • Her emotional volatility made it hard to predict her reactions.

   同义词capriciousnesschangeabilityficklenessfluctuationinstabilityturbulenceunpredictabilityunsteadinessvariability

   反义词constancypredictabilityreliabilitystabilitysteadiness

3. B2informal

   A tendency to become easily excited or agitated.

   易激动

   • His volatility often led to arguments over small issues.
   • The child's volatility was a challenge for the teacher.
   • She tried to control her volatility during the tense meeting.

   同义词agitationcapriciousnessexcitabilitymoodinessrestlessness

   反义词calmnesscomposureequanimityserenitysteadiness