mercurial

[ mer-kyoor-ee-uhl ]
See synonyms for: mercurialmercurialness on Thesaurus.com

adjective
  1. changeable; volatile; fickle; flighty; erratic: a mercurial nature.

  2. animated; lively; sprightly; quick-witted.

  1. pertaining to, containing, or caused by the metal mercury.

  2. (initial capital letter) of or relating to the god Mercury.

  3. (initial capital letter) of or relating to the planet Mercury.

noun
  1. Pharmacology. a preparation of mercury used as a drug.

Origin of mercurial

1
First recorded in 1350–1400; Middle English, from Latin mercuriālis “of or pertaining to the god or planet Mercury”; see origin at mercury, -al1

Other words for mercurial

Opposites for mercurial

Other words from mercurial

  • mer·cu·ri·al·ly, adverb
  • mer·cu·ri·al·ness, mer·cu·ri·al·i·ty, noun
  • un·mer·cur·i·al, adjective
  • un·mer·cur·i·al·ly, adverb
  • un·mer·cur·i·al·ness, noun

Words Nearby mercurial

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How to use mercurial in a sentence

British Dictionary definitions for mercurial

mercurial

/ (mɜːˈkjʊərɪəl) /


adjective
  1. of, like, containing, or relating to mercury

  2. volatile; lively: a mercurial temperament

  1. (sometimes capital) of, like, or relating to the god or the planet Mercury

noun
  1. med any salt of mercury for use as a medicine

Origin of mercurial

1
C14: from Latin mercuriālis

Derived forms of mercurial

  • mercurially, adverb
  • mercurialness or mercuriality, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012