from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. Nonstandard Regardless.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Regardless.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. regardless; a combination of irrespective and regardless sometimes used humorously
Probably blend of irrespective and regardless.(American Heritage® Dictionary of the English Language, Fourth Edition)
Probably a blend of irrespective and regardless; surface analysis is ir- + regardless. (Wiktionary)