mercurial

Of a fiery, mercurial disposition, his temper flew in a moment.

He is of that deep, mercurial disposition that attracts women.

The champagne was bubbling trickily in the veins of the mercurial statesmen.

Vidi, measures approximately, but not with the permanence of the mercurial.

He took iodide of potassium for a time after his mercurial course.

He was not a mercurial man, who easily changed his point of view.

The mercurial temperament of Mr Slingsby was severely tried at this point.

Besides, there was no trusting so mercurial a stream as Little River.

The mercurial alloys or amalgams are, perhaps, exceptions to this rule.

Bab was mercurial—always, as she herself put it, "going off" to extremes.