Illustrious
Illustrious adjective - Standing above others in rank, importance, or achievement.
Key and illustrious are semantically related. In some cases you can use "Key" instead an adjective "Illustrious".
Nearby Word: illustration
Key
Key adjective - Coming before all others in importance.
Usage example: maintains that Sir Isaac Newton remains the key figure in physical science
Illustrious and key are semantically related. Sometimes you can use "Illustrious" instead an adjective "Key".
Mutual synonyms
Related pairs
Cite this Source
Key and Illustrious. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/illustrious/key
Illustrious & Key. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/illustrious/key>.
Key or Illustrious. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/illustrious/key.
Google Ngram Viewer shows how "illustrious" and "key" have occurred on timeline