Perpetual
Perpetual adjective - Going on and on without any interruptions.
Unpredictable and perpetual are semantically related. In some cases you can use "Unpredictable" instead an adjective "Perpetual".
Unpredictable
Unpredictable adjective - Likely to change frequently, suddenly, or unexpectedly.
Perpetual and unpredictable are semantically related. Sometimes you can use "Perpetual" instead an adjective "Unpredictable".
Nearby Word: unpredictability
Mutual synonyms
Both words in one sentence
- The fact that he speaks in his usual perpetual calm monotone just makes it even more unpredictable and well timed.
Cite this Source
Unpredictable and Perpetual. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/perpetual/unpredictable
Perpetual & Unpredictable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/perpetual/unpredictable>.
Unpredictable or Perpetual. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/perpetual/unpredictable.
Google Ngram Viewer shows how "perpetual" and "unpredictable" have occurred on timeline