Hyperintelligent and Harebrained
Opposite meaning words
Hyperintelligent
Hyperintelligent adjective - Having or showing quickness of mind.
Usage example: from an early age he showed signs of being a hyperintelligent child
Harebrained is an antonym for hyperintelligent.
Harebrained
Harebrained adjective - Lacking in seriousness or maturity.
Hyperintelligent is an antonym for harebrained.
Cite this Source
Harebrained and Hyperintelligent. (2017). Retrieved 2026, August 14, from https://thesaurus.plus/related/hyperintelligent/harebrained
Hyperintelligent & Harebrained. N.p., 2017. Web. 14 Aug. 2026. <https://thesaurus.plus/related/hyperintelligent/harebrained>.
Harebrained or Hyperintelligent. 2017. Accessed August 14, 2026. https://thesaurus.plus/related/hyperintelligent/harebrained.
Google Ngram Viewer shows how "hyperintelligent" and "harebrained" have occurred on timeline