sour grapes
idiomPart ofgrape
sour grapes — idiom
1. a negative reaction in which someone pretends not to want or care about somethin
1.idiom
Definition
a negative reaction in which someone pretends not to want or care about something, simply because they cannot have it themselves
Example
After losing the race, Arjun said he did not care about winning — that was just sour grapes.
Rachel dismissed the award as unimportant, but her friends knew it was sour grapes.