from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not prepared in advance; impromptu: an off-the-cuff remark.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Extemporaneous; without prior preparation; impromptu.
from the GNU version of the Collaborative International Dictionary of English
- adj. with little or no preparation or forethought; unrehearsed; extemporaneous; offhand.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. without preparation
- adj. with little or no preparation or forethought
From the prepositional phrase off the cuff (Wiktionary)