گزارش خطا در معنی کلمه 'out of a clear blue sky'

1 general:: Also, out of the blue. Without warning, suddenly, as in Her offer to help us with the fundraising came out of a clear blue sky, or We got a check from Aunt Ruby out of the blue. These metaphoric terms allude to something dropping unexpectedly from the sky. [Late 1800s] Also see OUT OF NOWHERE.