Reasonable and Wacko

Opposite meaning words

Reasonable adjective - According to the rules of logic.

Show all Definitions

Wacko is an antonym for reasonable.

Wacko adjective - Having or showing a very abnormal or sick state of mind.

Usage example: the governor's staff spread rumors that his opponent's wife was wacko, as she had once undergone shock therapy for depression

Show all Definitions

Reasonable is an antonym for wacko.

Cite this Source

Wacko and Reasonable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/reasonable/wacko

Reasonable & Wacko. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/reasonable/wacko>.

Wacko or Reasonable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/reasonable/wacko.

Google Ngram Viewer shows how "reasonable" and "wacko" have occurred on timeline