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

exercise

physical activity that you do to make your body strong and healthy

Word of the Day

Byronic, Orwellian and Darwinian: adjectives from names.

by Liz Walter,
April 15, 2015
Becoming an adjective is a strange kind of memorial, but it is often a sign of a person having had real influence on the world. Science is full of examples, from Hippocrates, the Greek medic born around 460 BC, who gave his name to the Hippocratic Oath still used by doctors today,

Read More 

bio-inspiration noun

April 13, 2015
the adoption of patterns and structures found in nature for the purposes of engineering, manufacturing, science, etc. The MIT researchers actually aren’t the only robotics team to turn to cheetahs for bio-inspiration.

Read More