Extremely vs Incredibly

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

Extremely

Top 1,000 (very common)A2adverb

Incredibly

Top 2,000 (common)B1adverb
Most common: Extremely
 ExtremelyIncredibly
Pronunciation🇬🇧 /["/ɪkˈstriːmli/"]/🇺🇸 /["/ɪkˈstriːmli/"]/🇬🇧 /["/ɪnˈkredəbli/"]/🇺🇸 /["/ɪnˈkredəbli/"]/
MeaningVery much; to a very high degree.very much or extremely
ExampleShe was extremely happy about her exam results.It was all **incredibly difficult**.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA2B1
Part of speechadverbadverb
Collocationsextremely happy, extremely difficult, extremely important, extremely cold, extremely fastincredibly fast, incredibly difficult, incredibly beautiful, incredibly talented, incredibly lucky
Antonymsslightly, moderatelybarely, slightly
Common mistakesUsing 'extremely' with nouns, e.g., 'extremely happy person' instead of 'extremely happy'., Confusing 'extremely' with similar adverbs like 'really' for less intense expressions., Placing 'extremely' incorrectly in a sentence, altering the meaning.Confused with 'incredible' which is an adjective., Using 'incredibly' in a context where 'very' would be sufficient., Incorrectly placing 'incredibly' before nouns, where it should modify verbs or adjectives.
Usage notesUse 'extremely' to emphasize adjectives or adverbs. Appropriate in both spoken and written English, but avoid in casual contexts where simpler terms like 'really' may suffice.Use 'incredibly' to emphasize something is true to a high degree. Appropriate in both spoken and written English, but avoid in overly casual contexts.

Frequently asked questions: Extremely vs Incredibly

What's the difference between Extremely and Incredibly?

Extremely: Very much; to a very high degree. Incredibly: very much or extremely

Which is more common: Extremely and Incredibly?

Extremely is the most common in everyday English.

Are Extremely and Incredibly the same CEFR level?

Extremely: A2, Incredibly: B1 on the CEFR scale.

Can I use Extremely and Incredibly interchangeably?

Not always. Extremely and Incredibly 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.

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