Not at all vs Not even slightly

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

Not at all

Top 2,000 (common)

Not even slightly

Beyond 10,000 (less common)
Most common: Not at all
 Not at allNot even slightly
Pronunciation🇬🇧 //nɒt æt ɔːl//🇺🇸 //nɑt æt ɔl//🇬🇧 //nɒt ˈiːvən ˈslaɪtli//🇺🇸 //nɑt ˈivən ˈslaɪtli//
Meaningnot even a little bitNot at all; not even a little bit.
ExampleI didn't like the movie, not at all.I don't feel tired, not even slightly.
RegisterNeutralNeutral
How commonTop 2,000 (common)Beyond 10,000 (less common)
Collocationsnot at all worried, not at all surprising, not at all offendednot even slightly interested, not even slightly worried, not even slightly tempted
Antonymsat all, somewhat, partially-
Common mistakesConfusing 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.Confused with 'not even close', which implies a degree of distance., Used in formal contexts, which may seem out of place., Misplaced in sentences, altering the intended emphasis.
Usage notesUse 'not at all' to emphasize complete disagreement or absence. It's appropriate in both spoken and written contexts but less common in formal writing.Use in informal conversations to emphasize a complete lack of something. Avoid in formal writing.

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Not at all
Not even slightly

Frequently asked questions: Not at all vs Not even slightly

What's the difference between Not at all and Not even slightly?

Not at all: not even a little bit Not even slightly: Not at all; not even a little bit.

Which is more common: Not at all and Not even slightly?

Not at all is the most common in everyday English.

Can you show an example of each?

Not at all: I didn't like the movie, not at all. Not even slightly: I don't feel tired, not even slightly.

Can I use Not at all and Not even slightly interchangeably?

Not always. Not at all and Not even slightly 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.