Synonyms for mercurial

Synonyms for (adjective) mercurial

Synonyms: mercurial, erratic, fickle, quicksilver

Definition: liable to sudden unpredictable change

Usage: erratic behavior; fickle weather; mercurial twists of temperament; a quicksilver character, cool and willful at one moment, utterly fragile the next

Similar words: changeable, changeful

Definition: such that alteration is possible; having a marked tendency to change

Usage: changeable behavior; changeable moods; changeable prices