volatile

nouns

a volatile substance; a substance that changes readily from solid or liquid to a vapor
"it was heated to evaporate the volatiles"
is a type of (narrower)
the real physical matter of which a person or thing consists
"DNA is the substance of our genes"

adjectives

evaporating readily at normal temperatures and pressures
"volatile oils"; "volatile solvents"
is derived from
is derived from
antonym
is similar to
(used of substances) capable of being volatilized
domain category
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
see also
likely to change frequently often without apparent or cogent reason; variable
"inconstant affections"; "an inconstant lover"; "swear not by...the inconstant moon"- Shakespeare
liable to lead to sudden change or violence
"an explosive issue"; "a volatile situation with troops and rioters eager for a confrontation"
is derived from
marked by erratic changeableness in affections or attachments
"fickle friends"; "a flirt's volatile affections"
tending to vary often or widely
"volatile stocks"; "volatile emotions"
is derived from
is similar to
such that alteration is possible; having a marked tendency to change
"changeable behavior"; "changeable moods"; "changeable prices"