|Origin:||de- + inflate|
1 [intransitive and transitive]
if a tyre, balloon etc deflates, or if you deflate it, it gets smaller because the gas inside it comes out [≠ inflate; ↪ go down, let down]
to make someone feel less important or less confident:
She was deflated when Fen made no comment on her achievement.
to show that a statement, argument etc is wrong:
Simkin hoped to find a way to deflate his opponent's argument.
4 [intransitive and transitive]PE technical
to change economic rules or conditions in a country so that prices fall or stop rising