Irrational and Most likely
Opposite meaning terms
Irrational
Irrational adjective - Not using or following good reasoning.
Most likely is an antonym for irrational.
Nearby Words: irrationality, irrationally
Most likely
Cite this Source
Most likely and Irrational. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/irrational/most_likely
Irrational & Most likely. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/irrational/most_likely>.
Most likely or Irrational. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/irrational/most_likely.
Google Ngram Viewer shows how "irrational" and "most likely" have occurred on timeline