Erratic and Mutable

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

Mutable is a synonym for erratic in volatile topic. In some cases you can use "Mutable" instead an adjective "Erratic", when it comes to topics like unpredictable.

Nearby Word: errant

Mutable

Mutable adjective - Likely to change frequently, suddenly, or unexpectedly.
Usage example: a politician with very mutable positions on all the issues

Erratic is a synonym for mutable in changeable topic. Sometimes you can use "Erratic" instead an adjective "Mutable", if it concerns topics such as volatile.

Nearby Words: mutation, mutate, mutability, mutating, mutably
Cite this Source
Mutable and Erratic. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/erratic/mutable
Erratic & Mutable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/erratic/mutable>.
Mutable or Erratic. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/erratic/mutable.
Google Ngram Viewer shows how "erratic" and "mutable" have occurred on timeline