from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not displaying the qualities or behavior befitting a good sport.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. violating the accepted standards of sportsmanship
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. violating accepted standards or rules
un- + sportsmanlike (Wiktionary)