Synonyms of the word 
ILLUSTRIOUSNESS → GREATNESS - IMPORTANCE
illustriousness
- n. The state of being illustrious.
greatness
- n. The state, condition, or quality of being great.
- n. (obsolete): Pride; haughtiness.
importance
- n. The quality or condition of being important or worthy of note.
- n. significance or prominence.
- n. personal status or standing.
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