mercurial

英 [mɜː'kjʊərɪəl] 美[mɝ'kjʊrɪəl]

• adj. 水银的；水星的；墨丘利神的；雄辩机智的；活泼善变的
• n. 汞剂；水银剂

1. 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"

2. relating to or containing or caused by mercury;

"mercurial preparations"

"mercurial sore mouth"