Innocent vs Not guilty

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

Innocent

Top 2,000 (common)B1adjective

Not guilty

FormalTop 5,000 (fairly common)
Most formal: Not guiltyMost common: Innocent
 InnocentNot guilty
Pronunciation🇬🇧 /["/ˈɪnəsnt/"]/🇺🇸 /["/ˈɪnəsnt/"]/🇬🇧 //nɒt ˈɡɪlti//🇺🇸 //nɑt ˈɡɪlti//
MeaningNot guilty or not responsible for something bad.Not responsible for a crime or wrong action.
ExampleThe child looked so innocent while playing in the garden.The jury found him not guilty of all charges.
RegisterNeutralFormal
How commonTop 2,000 (common)Top 5,000 (fairly common)
CEFR levelB1-
Part of speechadjective
Collocationsbe, plead, believe somebody, completely, entirely, totally, of, act, appear, be, very, sweetly, deceptively, sweet and innocent, act, appear, be, very, all, perfectlydeclare not guilty, plead not guilty, verdict of not guilty
Antonymsguilty, culpable, involvedguilty
Common mistakesConfused with 'naive' — 'innocent' suggests lack of wrongdoing, while 'naive' implies lack of experience., Using 'innocent' to describe things like food or objects — it only describes people or their actions., Mispronouncing the first syllable as 'inno-cent' instead of 'inn-uh-sent'.Confused with 'innocent' as both can imply lack of guilt., Used inappropriately in non-legal contexts., Mispronounced or miswritten as 'not guity'.
Usage notesUse 'innocent' to describe someone who hasn't done anything wrong. It’s appropriate in both casual and formal contexts, but be cautious when referring to serious accusations in sensitive situations.Commonly used in legal contexts, appropriate in court or serious discussions. Not suitable for casual conversation or humor.

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Innocent
Not guilty

Frequently asked questions: Innocent vs Not guilty

What's the difference between Innocent and Not guilty?

Innocent: Not guilty or not responsible for something bad. Not guilty: Not responsible for a crime or wrong action.

Which is more formal: Innocent and Not guilty?

Not guilty is the most formal of these.

Which is more common: Innocent and Not guilty?

Innocent is the most common in everyday English.

Can you show an example of each?

Innocent: The child looked so innocent while playing in the garden. Not guilty: The jury found him not guilty of all charges.

Can I use Innocent and Not guilty interchangeably?

Not always. Innocent and Not guilty 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.