IPA: /ˈvoʊləˌtaɪl.nəs/
KK: /vɑːˈlætɪnəs/
The quality of being unstable or likely to change quickly, often in a way that is unpredictable.
The volatileness of the stock market can make investing risky.
Volatileness is formed from "volatilis" (from Latin, meaning flying or fleeting) and the suffix "-ness" (meaning the state or quality of). The word describes the quality of being able to fly or the tendency to change rapidly.
Think of something that is 'flying' or 'fleeting' — 'volatilis' suggests a sense of movement, and '-ness' indicates a state. This helps you remember that 'volatileness' refers to the quality of being changeable or unstable.