'Illustriousness' definitions:
Definition of 'illustriousness'
(from WordNet)
noun
The property possessed by something or someone of outstanding importance or eminence [syn: greatness, illustriousness]
Definition of 'Illustriousness'
From: GCIDE
- Illustriousness \Il*lus"tri*ous*ness\, n. The state or quality of being eminent; greatness; grandeur; glory; fame. [1913 Webster]