Daffy and Reasonable
Opposite meaning words
Daffy
Daffy adjective - Having or showing a very abnormal or sick state of mind.
Usage example: lurid newspaper reports that portrayed the serial killer as clearly daffy
Reasonable is an antonym for daffy.
Reasonable
Reasonable adjective - According to the rules of logic.
Usage example: his answer is perfectly reasonable
Daffy is an antonym for reasonable.
Cite this Source
Reasonable and Daffy. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/daffy/reasonable
Daffy & Reasonable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/daffy/reasonable>.
Reasonable or Daffy. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/daffy/reasonable.
Google Ngram Viewer shows how "daffy" and "reasonable" have occurred on timeline