out of the blue

out of the blue

As a Chinese idiom, Pinyin is ch ū Z ì y ì w à I, which means unexpected. It comes from the story of the hill in the west of the cobalt pool.

The origin of Idioms

Liu Zongyuan of the Tang Dynasty wrote in the story of a small hill in the west of the cobalt pool: "a small hill can't cover an acre I pity and sell it. When Li Shenyuan and Yuan Keji traveled together, they were both very happy and unexpected. "

Idiom usage

As predicate, attributive, adverbial; point out that people expect.