English Dictionary

not for nothing

phrase

For an extremely good reason. / Used to soften the impact of what is said next, implying that it is important. / Used other than figuratively or idiomatically: see not, for, nothing.

Not for nothing, but she is the most talented singer I've ever heard.

意味（1）

For an extremely good reason.

Not for nothing is it called the World Wide Wait. Not for nothing has a Dilbert cartoon appeared noting that all the time saved through automation and computers in the last fifty years has been entirely outweighed by people sitting in front of pc's waiting for web pages to load.

意味（2）

Used to soften the impact of what is said next, implying that it is important.

Listen, dawg, not for nothing, but I'm just horsing around with you when I say stuff like that.

意味（3）

Used other than figuratively or idiomatically: see not, for, nothing.

Why did he keep writing all those years for nothing? Not for nothing. For him.