Not appropriate
Unreasonable and not appropriate are semantically related. In some cases you can use "Unreasonable" instead an adjective phrase "Not appropriate".
Unreasonable
Unreasonable adjective - Having no basis in reason or fact.
Not appropriate and unreasonable are semantically related. You can use "Not appropriate" instead an adjective "Unreasonable".
Mutual synonyms
Cite this Source
Unreasonable and Not appropriate. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/not_appropriate/unreasonable
Not appropriate & Unreasonable. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/not_appropriate/unreasonable>.
Unreasonable or Not appropriate. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/not_appropriate/unreasonable.
Google Ngram Viewer shows how "not appropriate" and "unreasonable" have occurred on timeline