Temperamental and Undependable

Temperamental

Temperamental adjective - Likely to change frequently, suddenly, or unexpectedly.
Usage example: stock prices have been pretty temperamental lately, often fluctuating wildly

Undependable is a synonym for temperamental in moody topic. In some cases you can use "Undependable" instead an adjective "Temperamental".

Nearby Word: temperament

Undependable

Undependable adjective - Not worthy of reliance or trust.
Usage example: an undependable assistant

Temperamental is a synonym for undependable. You can use "Temperamental" instead an adjective "Undependable".
Cite this Source
Undependable and Temperamental. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/temperamental/undependable
Temperamental & Undependable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/temperamental/undependable>.
Undependable or Temperamental. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/temperamental/undependable.
Google Ngram Viewer shows how "temperamental" and "undependable" have occurred on timeline