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Word of the Day
: May 17, 2025
\mer-KYUR-ee-ul\ adjective
What It Means
Mercurial is usually used to describe someone whose mood changes quickly and unpredictably. It can also describe something that changes frequently, such as weather, or something that is lively and quick, such as someone’s wit.
// The director had some concerns about working with the play’s lead, an actor with a reputation for having a mercurial temperament on set.
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mercurial in Context
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