Synonyms for Letting air out:

• v.

  •despair (verb)
  • relinquish,
  • lose faith,
  • lose heart,
  • destroy,
  • renounce,
  • let air out,
  • despond,
  • have heavy heart,
  • surrender,
  • take down,
  • flatten,
  • be hopeless,
  • resign,
  • drop,
  • give way,
  • abandon,
  • yield.

Antonyms for Letting air out:

• v.

  • despair
    hope, pursue, have faith, expect, wish for, keep, anticipate.