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
Nearby Words: irrationality, irrationally
Logical
Logical adjective - According to the rules of logic.
Usage example: the lawyer won the case with a logical argument about the motives of the suspect
Both words in one sentence
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She in turn tells him that love is irrational, noting how children don't love for logical reasons, but just because.
Source: Film / The Irony Of Fate -
Moontear, of course, denies that they're even friends, and Wind Whistler finds a logical explanation for why her behavior suddenly becomes more irrational when Moontear is around.
Source: Webcomic / Star Mares - If a logical thinker finds it difficult to predict the actions of irrational people, and it is portrayed as a character flaw or limitation, then it is not this trope.
Source: Straw Vulcan
Cite this Source
Logical and Irrational. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/irrational/logical
Irrational & Logical. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/irrational/logical>.
Logical or Irrational. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/irrational/logical.
Google Ngram Viewer shows how "irrational" and "logical" have occurred on timeline