Mercurial meaning

mər-kyo͝or'ē-əl
The definition of mercurial is changeable or fickle.

Someone who can get mad in the blink of an eye is an example of someone who would be described as mercurial.

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Quick and changeable in temperament; volatile.

A mercurial nature.

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Having the characteristics of eloquence, shrewdness, swiftness, and thievishness attributed to the god Mercury.
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Containing or caused by the action of the element mercury.
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A pharmacological or chemical preparation containing mercury.
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Of Mercury (the god or planet)
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Of or containing mercury.
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Caused by the action or use of mercury.
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Having qualities attributed to the god Mercury or supposedly influenced by the planet Mercury; eloquent, clever, shrewd, thievish, etc.
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Having qualities suggestive of mercury; quick, quick-witted, volatile, changeable, fickle, etc.
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A drug or preparation containing mercury.
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Containing or caused by the action of the element mercury.
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A pharmacological or chemical preparation containing mercury.
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(astrology) Someone born under the influence of Mercury. [from 16th c.]
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(now historical) A preparation of mercury, especially as a treatment for syphilis. [from 17th c.]
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(often capitalized, see Mercurial) Pertaining to the planet Mercury. [from 14th c.]
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(often capitalized, see Mercurial) Pertaining to the Roman god Mercury. [from 15th c.]
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(astrology) Born under the influence of the planet Mercury, and having such characteristics. [from 16th c.]
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Of, or pertaining to the element mercury; containing mercury; caused by the action of mercury or quicksilver. [from 16th c.]
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Having a volatile or lively character; quick-witted, changeable, animated. [from 17th c.]
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Of or relating to Mercury as the god of trade; hence, money-making; crafty.
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Origin of mercurial

  • Middle English of the planet Mercury from Latin mercuriālis of the god or planet Mercury from Mercurius Mercury
    From American Heritage Dictionary of the English Language, 5th Edition
  • From Anglo-Norman / Old French mercurial, and their source, Latin mercurialis, from Mercurius (“Mercury").
    From Wiktionary