It's nothing vs No big deal

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

It's nothing

Top 2,000 (common)

No big deal

InformalTop 2,000 (common)
Most formal: It's nothing
 It's nothingNo big deal
Pronunciation🇬🇧 //ɪts ˈnʌθɪŋ//🇺🇸 //ɪts ˈnʌθɪŋ//🇬🇧 //nəʊ bɪg diːl//🇺🇸 //noʊ bɪɡ diːl//
MeaningIt means something is not important or not a problem.Not important or serious.
ExampleWhen I apologized, she said, 'Oh, it's nothing.'When she apologized for being late, I said, 'It's no big deal.'
RegisterNeutralInformal
How commonTop 2,000 (common)Top 2,000 (common)
Collocationsit's nothing serious, don't worry, it's nothing, please, it's nothing, it's nothing important, it's nothing to be concerned aboutmake it no big deal, say no big deal, treat as no big deal
Common mistakesUsing in a serious context where a more formal phrase is needed., Confusing with 'It's something' which indicates importance., Mispronouncing or emphasizing improperly, making it sound sarcastic.Used in formal contexts where seriousness is expected., Confused with 'no big idea' which has a different meaning., Mispronounced or used too seriously.
Usage notesCommonly used in casual conversation to downplay a situation. Avoid in formal writing or serious discourse.Commonly used in casual conversations to downplay a situation. Avoid in formal contexts.

See it in real clips

It's nothing
No big deal

Frequently asked questions: It's nothing vs No big deal

What's the difference between It's nothing and No big deal?

It's nothing: It means something is not important or not a problem. No big deal: Not important or serious.

Which is more formal: It's nothing and No big deal?

It's nothing is the most formal of these.

Can you show an example of each?

It's nothing: When I apologized, she said, 'Oh, it's nothing.' No big deal: When she apologized for being late, I said, 'It's no big deal.'

Can I use It's nothing and No big deal interchangeably?

Not always. It's nothing and No big deal 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