Blunder vs Error

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

 BlunderError
MeaningA big mistake or careless error.A mistake or something wrong that happens.
CEFR levelB1A2
Part of speechnounnoun
Usage notesUse 'blunder' for mistakes that are noticeable and often embarrassing. It's suitable for most contexts but may sound too strong in casual conversation.Use 'error' in both formal and casual contexts when talking about mistakes in writing, computer systems, or decisions. Avoid using it in very casual settings without explanation.

Frequently asked questions: Blunder vs Error

What's the difference between "Blunder" and "Error"?

"Blunder" means: A big mistake or careless error. "Error" means: A mistake or something wrong that happens.

When should I use "Blunder" and "Error"?

They can all be used in everyday English.

Are "Blunder" and "Error" the same CEFR level?

"Blunder" is at B1, "Error" is at A2 on the CEFR scale.

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