Foolish
Foolish adjective - Showing or marked by a lack of good sense or judgment.
Usage example: a foolish scheme that was supposed to make us all rich
Irrational is a synonym for foolish in childish topic. In some cases you can use "Irrational" instead an adjective "Foolish", when it comes to topics like absurd, nonsensical.
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
Foolish is a synonym for irrational in illogical topic. You can use "Foolish" instead an adjective "Irrational", if it concerns topics such as absurd, childish, senseless.
Nearby Words: irrationality, irrationally
Mutual synonyms
Related pairs
- stupid and foolish
- stupid and irrational
- crazy and foolish
- crazy and irrational
- illogical and foolish
- illogical and irrational
- silly and foolish
- silly and irrational
- senseless and foolish
- senseless and irrational
- absurd and foolish
- absurd and irrational
- unreasonable and foolish
- unreasonable and irrational
Both words in one sentence
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Some cynical souls have observed that the stereotypical 'romance' book or movie shares a trait with most porn fiction, in that both stories end before the point where the natural consequences of the foolish or irrational choices and actions of the characters would arise.
Source: Romance Novel
Cite this Source
Irrational and Foolish. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/foolish/irrational
Foolish & Irrational. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/foolish/irrational>.
Irrational or Foolish. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/foolish/irrational.
Google Ngram Viewer shows how "foolish" and "irrational" have occurred on timeline