Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “mercurial”

See all translations

mercurial

adjective uk   /mɜːˈkjʊə.ri.əl/ us    /mɜːrˈkjʊr.i-/

mercurial adjective (QUICK)

literary changing suddenly and often: a mercurial temperament She was entertaining but unpredictable, with mercurial mood swings. literary intelligent, enthusiastic, and quick: a mercurial mind/wit

mercurial adjective (RELATING TO MERCURY)

specialized medical containing or caused by mercury: mercurial drugs
Translations of “mercurial”
in Chinese (Traditional) 多變的,反覆無常的, 機智而充滿熱忱的…
in Chinese (Simplified) 多变的,反复无常的, 雄辩机智的…
(Definition of mercurial from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of mercurial?
Add Cambridge dictionaries to your browser to your website

Word of the Day

ice over

If an area of water ices over, it becomes covered with a layer of ice.

Word of the Day

Let’s celebrate! (words and phrases for parties)

by Kate Woodford,
December 17, 2014
​​​ With Christmas and New Year almost upon us, we thought it a good time to look at the language of parties and celebrations. First, let’s start with the word ‘party’ itself. To have or throw a party or, less commonly, to give a party is to arrange a party: We’re having a

Read More 

cinderella surgery noun

December 15, 2014
cosmetic surgery to the feet We have all heard of people having nose jobs, boob jobs and liposuction – but now a new trend growing in popularity in America: Cinderella surgery.

Read More