Rational and Silly

Rational

Rational adjective - Having the ability to reason.

Silly is an antonym for rational.

Silly

Silly adjective - Showing or marked by a lack of good sense or judgment.
Usage example: those silly movie producers who thought that audiences would fall for that gimmick all over again

Rational is an antonym for silly.

Nearby Word: silliness

Both words in one sentence

  • On Alien Nation, Tenctonese are implied to be culturally more rational about sex; it happens, it's enjoyable, it shouldn't be taken lightly (they find oversexualized things such as pornography silly), and it doesn't matter what gender both partners are.
  • Series / Alien Nation Lysistrata Gambit: Tenctonese are implied to be culturally more rational about sex; it happens, it's enjoyable, it shouldn't be taken lightly (they find oversexualized things such as pornography silly), and it doesn't matter what gender both partners are.
  • Film / Star Trek II: The Wrath of Khan Only Sane Man: Joachim seems to be the only one on Khan's crew rational enough to realize (and actually voice the opinion) that revenge against Kirk is silly, but unfortunately for him, Khan's too bent on his revenge.
Cite this Source
Silly and Rational. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/rational/silly
Rational & Silly. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/rational/silly>.
Silly or Rational. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/rational/silly.
Google Ngram Viewer shows how "rational" and "silly" have occurred on timeline