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
Volatile is a synonym for mercurial in change topic. In some cases you can use "Volatile" instead an adjective "Mercurial", when it comes to topics like capricious, flighty. popular alternative
Volatile
Volatile adjective - Likely to change frequently, suddenly, or unexpectedly.
Usage example: a boss of volatile moods is frustrating to work for
Mercurial is a synonym for volatile in change topic. You can use "Mercurial" instead the word "Volatile" as an adjective or a noun, if it concerns topics such as explosive. popular alternative
Mutual synonyms
Related pairs
- impulsive and mercurial
- impulsive and volatile
- capricious and mercurial
- capricious and volatile
- whimsical and mercurial
- whimsical and volatile
- fluid and mercurial
- fluid and volatile
- unsettled and mercurial
- unsettled and volatile
- inconsistent and mercurial
- inconsistent and volatile
- unstable and mercurial
- unstable and volatile
Both words in one sentence
- The PCs' employer is eccentric, mercurial, volatile, unpredictable and sometimes ruthlessly malicious toward them.
Source: Shout Out / Tabletop Games -
It seems he just liked the sound of the name, but it is connected to the adjective mercurial, which is fittingly defined by Wiktionary as (among other things) "Having a volatile or lively character; quick-witted, changeable, animated."
Source: Meaningful Rename
Cite this Source
Volatile and Mercurial. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/mercurial/volatile
Mercurial & Volatile. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/mercurial/volatile>.
Volatile or Mercurial. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/mercurial/volatile.
Google Ngram Viewer shows how "mercurial" and "volatile" have occurred on timeline