Question

What is the meaning of - at all?
Explain with example! ​

Answer 1

at all_ to any extent..

eg ,

I don't like her at all...

Answer 2

at all is a phrase of all .

it is added at the end of an utterance for emphasis .

it means " in any way " or "to any extend "

For example -

1) you are not at all a good spammer

2) what is the matter with you at all ?