Mutable
Mutable adjective - Likely to change frequently, suddenly, or unexpectedly.
Unreasonable and mutable are semantically related. In some cases you can use "Unreasonable" instead an adjective "Mutable".
Unreasonable
Unreasonable adjective - Having no basis in reason or fact.
Mutable and unreasonable are semantically related. Sometimes you can use "Mutable" instead an adjective "Unreasonable".
Mutual synonyms
Cite this Source
Unreasonable and Mutable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/mutable/unreasonable
Mutable & Unreasonable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/mutable/unreasonable>.
Unreasonable or Mutable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/mutable/unreasonable.
Google Ngram Viewer shows how "mutable" and "unreasonable" have occurred on timeline