vol ‧ a ‧ tile /ˈvɒlətaɪl $ ˈvɑːlətl/ BrE AmE adjective
[ Date: 1500-1600 ; Language: French ; Origin: Latin volatilis , from volare 'to fly' ]
1 . a volatile situation is likely to change suddenly and without warning OPP stable :
an increasingly volatile political situation
the highly volatile stock and bond markets
2 . someone who is volatile can suddenly become angry or violent
3 . technical a volatile liquid or substance changes easily into a gas OPP stable
—volatility /ˌvɒləˈtɪləti, ˌvɒləˈtɪlɪti $ ˌvɑː-/ noun [uncountable]