deflated

Short definition from Wiktionary

Adjective

1. 1
   Empty of all the air or gas that was or could be inside.
2. 2
   Disappointed; depressed, especially after having been hopeful or in high spirits.
3. 3
   Reduced or lowered.
4. 4
   Adjusted downward to compensate for inflation.
5. 5
   Suffering from deflation.
6. 6
   Subsided or compressed downward.

Verb

1. 1
   simple past and past participle of deflate