from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Bitter and sharp in language or tone; rancorous: an acrimonious debate between the two candidates.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. angry, acid, and sharp in delivering argumentative replies: bitter; mean-spirited; sharp in language or tone.
from the GNU version of the Collaborative International Dictionary of English
- adj. Acrid; corrosive.
- adj. Caustic; bitter-tempered' sarcastic.
from The Century Dictionary and Cyclopedia
- Abounding in acrimony or acridness; acrid; corrosive.
- Figuratively, severe; bitter; virulent; caustic; stinging: applied to language, temper, etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. marked by strong resentment or cynicism
acrimony + -ous. From French acrimonieux, from Latin acrimoniosus. (Wiktionary)