Pronunciation: (ik-strav'u-guns), [key]
1. excessive or unnecessary expenditure or outlay of money.
2. an instance of this: That sports car is an inexcusable extravagance.
3. unrestrained or fantastic excess, as of actions or opinions.
4. an extravagant action, notion, etc.: the extravagances one commits in moments of stress.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.