- highly distinguished; renowned; famous: an illustrious leader.
- glorious, as deeds or works: many illustrious achievements.
- Obsolete. luminous; bright.
Origin of illustrious
SynonymsSee more synonyms for illustrious on Thesaurus.com
Examples from the Web for illustriously
He fell conspicuously, illustriously, between the reviewers who reviled him, and the public who would have none of him.The Creators
He is the present chieftain of the McGregor clan, which figures so illustriously in the history of Scotland.The Anti-Slavery Examiner, Omnibus
American Anti-Slavery Society
- of great renown; famous and distinguished
- glorious or greatillustrious deeds
- obsolete shining
Word Origin and History for illustriously
1560s, from Latin illustris "lighted, bright, brilliant;" figuratively "distinguished, famous," probably a back-formation from illustrare "embellish, distinguish, make famous" (see illustration). Sometimes also illustrous. Replaced illustre in same sense (mid-15c.), from Middle French illustre.