| a. | 1. | Possessing luster or brightness; brilliant; luminous; splendid. |
| 2. | Characterized by greatness, nobleness, etc.; eminent; conspicuous; distinguished. | |
| 3. | Conferring luster or honor; renowned; |
| Adj. | 1. | illustrious - widely known and esteemed; "a famous actor"; "a celebrated musician"; "a famed scientist"; "an illustrious judge"; "a notable historian"; "a renowned painter" |
| 2. | illustrious - having or conferring glory; "an illustrious achievement" | |
| 3. | illustrious - having or worthy of pride; "redoubtable scholar of the Renaissance"; "born of a redoubtable family" |