noun, noun which may take the genitive case particle 'no'
Refers to the tendency of a substance to vaporize; also used figuratively for unstable situations or emotions.
This liquid is highly volatile, so please store it in a sealed container.
Market volatility is increasing.
Compound of 揮発 (volatilization) + 性 (property, nature). 揮発 is from 揮 (wave, brandish) and 発 (emit, discharge).