from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not governed or moderated by reason.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Behaving without reason.
from The Century Dictionary and Cyclopedia
- Not reasoning; not having reasoning faculties; characterized by want of reason.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. not based on reason or evidence
Sorry, no etymologies found.