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adjective

mercurial

subject to sudden or unpredictable changes of mood

In a sentence

Six example sentences with mercurial, each labelled with its topic.

  • The conductor is mercurial, warm through the first movement and furious by the time the brass enters late.

    Music

  • Her mercurial character laughs through one scene and refuses to speak in the next, which unsettles everyone at the table.

    Movies

  • My training partner is mercurial: some mornings he adds weight to every set, other mornings he leaves after ten minutes.

    Fitness

  • The forward is mercurial, joking through warmups one night and refusing to speak to anyone on the bench the next.

    Basketball

  • Working for a mercurial founder meant a plan praised on Monday could be scrapped angrily by Wednesday.

    Startups

  • The poet's mercurial temper fills his letters, which swing from delight to despair within a single page.

    Literature

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Found in these word lists

Found in 10 published word listsRecognized

Each source is a published word list that contains mercurial. No exam board publishes an official GRE, GMAT or SAT list; GMAT words come from GRE lists and the Academic Word List.