Pronunciation: (un-yOOzd' for 1, 2; un-yOOst' for 3), [key]
1. not used; not put to use: an unused room.
2. never having been used: an unused postage stamp.
3. not accustomed: unused to cold winters.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.