from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Unwilling to make or express an apology.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Not apologetic, especially when being apologetic would be appropriate.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. unwilling to make or express an apology
un- + apologetic (Wiktionary)