Mercurial and Unstable

Mercurial

Mercurial adjective - Likely to change frequently, suddenly, or unexpectedly.
Usage example: the boss's mood is so mercurial that we never know how he's going to react to anything

Unstable is a synonym for mercurial in change topic. In some cases you can use "Unstable" instead an adjective "Mercurial", when it comes to topics like capricious, volatile, fickle, flighty. popular alternative

Nearby Words: mercury, mercuric

Unstable

Unstable adjective - Likely to change frequently, suddenly, or unexpectedly.
Usage example: financial investors don't like an unstable economy

Mercurial is a synonym for unstable in change topic. You can use "Mercurial" instead the word "Unstable" as an adjective or a noun, if it concerns topics such as doubtful, fickle, changeable. popular alternative

Nearby Word: unstably
Cite this Source
Unstable and Mercurial. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/mercurial/unstable
Mercurial & Unstable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/mercurial/unstable>.
Unstable or Mercurial. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/mercurial/unstable.
Google Ngram Viewer shows how "mercurial" and "unstable" have occurred on timeline