(as) free as (the) air

(as) free as (the) air

1. Unencumbered; without constraints or restrictions. The phrase means the same as "free," but with more emphasis. I'm as free as air this Friday! Do you want to meet for dinner? A: "Are you still with Brian?" B: "Nope, I'm single now—free as the air!"
2. Happy and untroubled. Betty must be free as air because I never see her in a bad mood.
See also: air, free
Farlex Dictionary of Idioms.

(as) free as (the) ˈair/as a ˈbird

completely free: You can’t imagine what it’s like to feel as free as the air. Nobody who hasn’t been in prison can imagine it.
See also: air, bird, free
Farlex Partner Idioms Dictionary
See also:
  • free as air/as a bird
  • (as) free as a bird
  • free as a bird
  • a free lunch
  • free lunch
  • the only free cheese is in the mousetrap
  • You don't get for nothing
  • Es
  • (there) ain't no free lunch(es)
  • there's no such thing as a free lunch