from The American Heritage® Dictionary of the English Language, 4th Edition
- n.pl. Denial of the desirability of something after one has found out that it cannot be reached or acquired: The losers' scorn for the award is pure sour grapes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A putting down or expression of disdain about something that one desires but cannot have.
from the GNU version of the Collaborative International Dictionary of English
- n. things which persons affect to despise because they can not possess them; -- in allusion to Æsop's fable of the fox and the grapes.
- adj. See under Grape.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. disparagement of something that is unattainable
From the Aesop's fable The Fox and the Grapes, in which a fox, unable to reach grapes he is seeking, decides that they must have been sour. (Wiktionary)