out of thin air
From nothing, as of something that has suddenly materialized. You need to work hard—opportunities don't just come out of thin air. For his final trick, the magician pulled a bouquet of flowers out of thin air.
out of thin air
Fig. out of nowhere; out of nothing. Suddenly—out of thin air—the messenger appeared. You just made that excuse up out of thin air.
out of thin air
COMMON If something appears out of thin air, it appears suddenly and unexpectedly. A crisis had materialised out of thin air. Auster spins stories out of thin air. Note: You can also say that something appears from thin air. Thirteen years ago, with her children almost grown up, she found herself having to conjure a career from thin air.