from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To make bitter in flavor.
- transitive v. To arouse bitter feelings in: was embittered by years of unrewarded labor.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To cause to be bitter.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To make bitter or sad. See imbitter.
from The Century Dictionary and Cyclopedia
- To make bitter or more bitter.
- To affect with biterness or unhappiness; make distressful or grievous: as, the sins of youth often embitter old age.
- To render more violent or malignant; exasperate.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. cause to be bitter or resentful
em- + bitter (Wiktionary)