vol·a·tile
ˈvä-lə-tᵊl
especially British -ˌtī(-ə)l
1
a
: characterized by or subject to rapid or unexpected change
a volatile market
b
: unable to hold the attention fixed because of an inherent lightness or fickleness of disposition
2
b
: easily aroused
volatile suspicions
c
3
: readily vaporizable at a relatively low temperature
4
: difficult to capture or hold permanently : evanescent, transitory
5
: flying or having the power to fly
volatileness
noun
: a substance that is readily vaporizable at relatively low temperature : a volatile substance
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Merriam-Webster unabridged
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