1. quicksilver

adjective. (ˈkwɪkˈsɪlvɝ) Liable to sudden unpredictable change.
Synonyms
erratic changeable fickle changeful mercurial
Antonyms
unchangeable nonmetallic achromatic reliable dependable
Etymology
quicksilver (English)
quyksilver (Middle English (1100-1500))
cwicseolfor (Old English (ca. 450-1100))
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2. quicksilver

noun. (ˈkwɪkˈsɪlvɝ) A heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures.
Synonyms
metal atomic number 80 mercury hydrargyrum calomel mercurous chloride Hg cinnabar metallic element
Antonyms
settled changelessness unexchangeable constant colorless
Etymology
quicksilver (English)
quyksilver (Middle English (1100-1500))
cwicseolfor (Old English (ca. 450-1100))
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