Erratic and Mercurial

Erratic

Erratic adjective - Lacking in steadiness or regularity of occurrence.
Usage example: because of your erratic attendance at practice, you're in danger of being cut from the team

Mercurial is a synonym for erratic in change topic. In some cases you can use "Mercurial" instead the word "Erratic" as an adjective or a noun, when it comes to topics like unpredictable. popular alternative

Nearby Word: errant

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

Erratic is a synonym for mercurial in change topic. You can use "Erratic" instead an adjective "Mercurial", if it concerns topics such as capricious, volatile, flighty. popular alternative

Nearby Words: mercury, mercuric

Both words in one sentence

  • Music / Guns N' Roses Walking Disaster Area: The band's gigs during the early 90s were exceedingly prone to ending in riots, largely due to Axl's erratic, mercurial nature.
Cite this Source
Mercurial and Erratic. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/erratic/mercurial
Erratic & Mercurial. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/erratic/mercurial>.
Mercurial or Erratic. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/erratic/mercurial.
Google Ngram Viewer shows how "erratic" and "mercurial" have occurred on timeline