Fluctuating and Unstable

Fluctuating

Fluctuating adjective - Likely to change frequently, suddenly, or unexpectedly.
Usage example: a fluctuating stock market makes it hard for investors to know what to do

Unstable is a synonym for fluctuating in character trait topic. In some cases you can use "Unstable" instead an adjective "Fluctuating", when it comes to topics like weak, changeable.

Nearby Words: fluctuate, fluctuation, fluctuated

Unstable

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

Fluctuating is a synonym for unstable in character trait topic. You can use "Fluctuating" instead an adjective "Unstable", if it concerns topics such as doubtful, changeable.

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