il ‧ lus ‧ tri ‧ ous /ɪˈlʌstriəs/ BrE AmE adjective formal
[ Date: 1500-1600 ; Language: Latin ; Origin: illustris 'bright, famous' , from illustrare ; ⇨ ↑ illustrate ]
famous and admired because of what you have achieved:
She has had an illustrious career.
Wagner was just one of many illustrious visitors to the town.