quicksilver

/ˈkwɪkˌsɪlvər/
adjective
  1. Very fast, changeable, or elusive.
    • The quicksilver movements of the hummingbird amazed the children.
    • The quicksilver changes in the stock market made investors nervous.
    • He had a quicksilver mind that could solve problems in seconds.
Synonyms
noun
  1. The liquid metal mercury.
    • Miners extracted quicksilver from the ore.
    • Quicksilver was once used in thermometers.
    • The old mirror had a backing made of quicksilver.
  2. Something that is very fast, changeable, or elusive.
    • His thoughts were quicksilver, impossible to pin down.
    • The dancer moved with the quicksilver grace of a cat.
    • Her mood was like quicksilver, shifting from happy to sad in an instant.
Synonyms
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