Foolish and Key
Opposite meaning words
Foolish
Foolish adjective - Lacking importance.
Usage example: the current regulations are cluttered with foolish details that are unnecessarily burdensome
Key
Key adjective - Coming before all others in importance.
Cite this Source
Key and Foolish. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/foolish/key
Foolish & Key. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/foolish/key>.
Key or Foolish. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/foolish/key.
Google Ngram Viewer shows how "foolish" and "key" have occurred on timeline