無啦啦 out of the blue / it comes from nowhere

"無啦啦", "無端端" ,"無端白事"的意思是無緣無故 冇理由

1.     out of the blue

       She called me out of the blue.

2.    come from no where

       I didn't expect the invitation. It really came from nowhere.

3.   unexpectedly

      I was offered a job unexpectedly.

同義詞:

1. (formal, derogative) gratuitous
e.g. A lot of viewers complained that there was too much violence in the movie.

2. uncalled for