I am no/not good for.....

[subhajit123]

Is there any difference between the following sentences?

1- I am no good for him.
2- I am not good for him.

 

[Lynxear]

The difference is very very subtle. Context would play a huge role in deciding what these sentences mean.

1- I am no good for him.

I would say without knowledge of the context that the person saying this has a very low self-esteem.

2- I am not good for him.

In this case I would say the person is more confident. However, she does not see a "fit" between them. So in her opinion the relationship is doomed to failure.