No vs Not at all

When to use each in English, with meaning, register, and examples.

No

High-frequency chunkA1exclamation

Not at all

Top 2,000 (common)
Most common: No
 NoNot at all
Pronunciation🇬🇧 /["/nəʊ/"]/🇺🇸 /["/nəʊ/"]/🇬🇧 //nɒt æt ɔːl//🇺🇸 //nɑt æt ɔl//
MeaningRefusal or disagreement.not even a little bit
ExampleI asked if she wanted to join us, and she said no.I didn't like the movie, not at all.
RegisterNeutralNeutral
How commonHigh-frequency chunkTop 2,000 (common)
CEFR levelA1-
Part of speechexclamation
Collocationssay no, no way, no doubt, no problem, no harmnot at all worried, not at all surprising, not at all offended
Antonymsyesat all, somewhat, partially
Common mistakesConfused with 'not', using 'no' in places where 'not' should be used., Inappropriately using 'no' when a softer response is better., Mispronouncing it in a way that sounds like 'know'.Confusing with 'not really' which is less absolute., Using it in formal contexts where a less emphatic phrase is better., Omitting it when it's necessary for clarity.
Usage notesUse 'no' to reject something or indicate disagreement. It's appropriate in both formal and informal contexts. Avoid using it abruptly in sensitive situations to avoid coming off as rude.Use 'not at all' to emphasize complete disagreement or absence. It's appropriate in both spoken and written contexts but less common in formal writing.

See it in real clips

Not at all

Frequently asked questions: No vs Not at all

What's the difference between No and Not at all?

No: Refusal or disagreement. Not at all: not even a little bit

Which is more common: No and Not at all?

No is the most common in everyday English.

Can you show an example of each?

No: I asked if she wanted to join us, and she said no. Not at all: I didn't like the movie, not at all.

Can I use No and Not at all interchangeably?

Not always. No and Not at all are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons