By mistake

Definition 1 of 1

Pro Tip 1/3

Common Mix-Ups

Remember, 'by mistake' means accidentally, not out of ignorance or a lack of skill. Slide

He didn't fail the test by mistake; he just didn't study.

Pro Tip 2/3

Not Interchangeable

'By mistake' and 'on purpose' are opposites. Don't confuse them when speaking or writing. Slide

You dropped your phone by mistake, not on purpose.

Pro Tip 3/3

Feeling Conveyed

Using 'by mistake' can express regret or embarrassment over the unintended action. Slide

I called you by mistake last night; I'm so embarrassed!

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