[sour grapes] n pl [fr. the fable ascribed to Aesop of the fox who after finding himself unable to reach some grapes he had desired disparaged them as sour] (1760): disparagement of something that has proven unattainable
SOUR GRAPES
Meaning of SOUR GRAPES in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012