quicksilver

(s) liable to sudden unpredictable change
- erratic behavior
- fickle weather
- mercurial twists of temperament
- a quicksilver character, cool and willful at one moment, utterly fragile the next
erratic, mercurial, fickle,

Nouns

(n) a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures atomic number 80, Hg, hydrargyrum, mercury,

Synonyms

erratic mercurial fickle atomic number 80 Hg hydrargyrum mercury

Words of close approximity