As soon as possible vs Immediately

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

As soon as possible

Top 2,000 (common)

Immediately

Top 1,000 (very common)A2adverb
Most common: Immediately
 As soon as possibleImmediately
Pronunciation🇬🇧 //æz suːn æz ˈpɒsəbl//🇺🇸 //æz suːn æz ˈpɑːsəbl//🇬🇧 /["/ɪˈmiːdiətli/"]/🇺🇸 /["/ɪˈmiːdiətli/"]/
MeaningDo something quickly or without delay.right away, without waiting
ExamplePlease submit your report as soon as possible so we can review it.He answered the question immediately after it was asked.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR level-A2
Part of speechadverb
Collocationssend information as soon as possible, complete the task as soon as possible, respond as soon as possiblerespond immediately, act immediately, notify immediately
Antonyms-eventually, later
Common mistakesOmitting 'as' and saying 'soon possible'., Using in overly casual situations., Translating directly into other languages leading to awkward phrasing.Using 'immediate' instead of 'immediately'., Confusing with 'eventually', which means later., Incorrectly placing 'immediately' at the end of a sentence.
Usage notesCommonly used in both spoken and written English to indicate urgency; appropriate in both formal and informal contexts.Use 'immediately' to emphasize urgency or promptness. It's appropriate in both spoken and written English, but avoid in very casual contexts.

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As soon as possible
Immediately

Frequently asked questions: As soon as possible vs Immediately

What's the difference between As soon as possible and Immediately?

As soon as possible: Do something quickly or without delay. Immediately: right away, without waiting

Which is more common: As soon as possible and Immediately?

Immediately is the most common in everyday English.

Can you show an example of each?

As soon as possible: Please submit your report as soon as possible so we can review it. Immediately: He answered the question immediately after it was asked.

Can I use As soon as possible and Immediately interchangeably?

Not always. As soon as possible and Immediately 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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