Preposterous
Preposterous adjective - Conceived or made without regard for reason or reality.
Unacceptable and preposterous are semantically related. In some cases you can use "Unacceptable" instead an adjective "Preposterous".
Unacceptable
Unacceptable adjective - Falling short of a standard.
Preposterous and unacceptable are semantically related. Sometimes you can use "Preposterous" instead an adjective "Unacceptable".
Nearby Word: unaccepted
Mutual synonyms
Cite this Source
Unacceptable and Preposterous. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/preposterous/unacceptable
Preposterous & Unacceptable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/preposterous/unacceptable>.
Unacceptable or Preposterous. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/preposterous/unacceptable.
Google Ngram Viewer shows how "preposterous" and "unacceptable" have occurred on timeline