Off base
Preposterous and off base are semantically related. In some cases you can use "Preposterous" instead an adjective phrase "Off base".
Preposterous
Preposterous adjective - Conceived or made without regard for reason or reality.
Off base and preposterous are semantically related. Sometimes you can replace phrase "Off base" with "Preposterous", this terms are similar.
Mutual synonyms
Cite this Source
Preposterous and Off base. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/off_base/preposterous
Off base & Preposterous. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/off_base/preposterous>.
Preposterous or Off base. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/off_base/preposterous.
Google Ngram Viewer shows how "off base" and "preposterous" have occurred on timeline