Cuckoo
Cuckoo adjective - Having or showing a very abnormal or sick state of mind.
Usage example: a cuckoo woman who wandered around town carefully gathering up useless trash
Nearby Word: cuckooing
Rational
Rational adjective - Having the ability to reason.
Both words in one sentence
- While Phoenix and Apollo might be reds to their prosecutor rivals' blues, they also both tend to play the more rational Straight Man to to their Genki Girl Cloud Cuckoo Lander assistants.
Source: Red Oni Blue Oni / Visual Novels
Cite this Source
Rational and Cuckoo. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/cuckoo/rational
Cuckoo & Rational. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/cuckoo/rational>.
Rational or Cuckoo. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/cuckoo/rational.
Google Ngram Viewer shows how "cuckoo" and "rational" have occurred on timeline