mercurial
🇺🇸
/mɜːrˈkjʊriəl/
🇬🇧
/mɜːˈkjʊəriəl/
adjective
R
quickly changing or unpredictable
The weather is mercurial, so bring a jacket just in case.
R
energetic and intelligent
Her mercurial personality lit up the room.
R
related to or containing mercury
Mercurial compounds are often used in thermometers.
translation
quickly changing or unpredictable; energetic and intelligent; related to or containing mercury