Irrational
Irrational adjective - Not using or following good reasoning.
Usage example: it's irrational to think that you can continue to consume an excess of calories and not gain weight
Preposterous is a synonym for irrational in illogical topic. In some cases you can use "Preposterous" instead an adjective "Irrational". popular alternative
Nearby Words: irrationality, irrationally
Preposterous
Preposterous adjective - Showing or marked by a lack of good sense or judgment.
Usage example: a preposterous suggestion to go swimming in this freezing weather
Irrational is a synonym for preposterous in absurd topic. You can use "Irrational" instead an adjective "Preposterous", if it concerns topics such as ridiculous, illogical. popular alternative
Mutual synonyms
Related pairs
- wild and irrational
- wild and preposterous
- stupid and irrational
- stupid and preposterous
- outrageous and irrational
- outrageous and preposterous
- foolish and irrational
- foolish and preposterous
- crazy and irrational
- crazy and preposterous
- illogical and irrational
- illogical and preposterous
- unsound and irrational
- unsound and preposterous
Cite this Source
Preposterous and Irrational. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/irrational/preposterous
Irrational & Preposterous. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/irrational/preposterous>.
Preposterous or Irrational. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/irrational/preposterous.
Google Ngram Viewer shows how "irrational" and "preposterous" have occurred on timeline