S: (adj) explosive, volatile (liable to lead to sudden change or violence) "an explosive issue"; "a volatile situation with troops and rioters eager for a confrontation"
S: (adj) fickle, volatile (marked by erratic changeableness in affections or attachments) "fickle friends"; "a flirt's volatile affections"
S: (adj) volatile (tending to vary often or widely) "volatile stocks"; "volatile emotions"
S: (adj) changeable, changeful (such that alteration is possible; having a marked tendency to change) "changeable behavior"; "changeable moods"; "changeable prices"