from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To make discontented.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To make discontent or cross; to cause being in a bad temper.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To dissatisfy; to disaffect; to anger.
from The Century Dictionary and Cyclopedia
- To disappoint; disconcert; chagrin; disgust; offend; throw into a state of sulky dissatisfaction: usually in the participial adjective disgruntled.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. put into a bad mood or into bad humour
dis- + gruntle, to grumble (from Middle English gruntelen, frequentative of grunten, to grunt; see grunt).(American Heritage® Dictionary of the English Language, Fourth Edition)
dis- + gruntle (Wiktionary)