not at all
phraseUK /nɒt æt ɔːl/
US /nɑːt æt ɔːl/
Not even a little bit.
I am not at all tired.
OTHER MEANINGS
2. A polite way to say you are welcome.
"Thank you for your help." "Not at all."
3. Used to say something is not true.
Not at all, I was happy to do it.
4. Used to strongly say no.
Are you upset? Not at all.