Immediately vs Straight away

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

Immediately

Top 1,000 (very common)A2adverb

Straight away

InformalTop 2,000 (common)
Most formal: ImmediatelyMost common: Immediately
 ImmediatelyStraight away
Pronunciation🇬🇧 /["/ɪˈmiːdiətli/"]/🇺🇸 /["/ɪˈmiːdiətli/"]/🇬🇧 //ˈstreɪt əˈweɪ//🇺🇸 //ˈstreɪt əˈweɪ//
Meaningright away, without waitingImmediately or right now
ExampleHe answered the question immediately after it was asked.I need to go straight away to catch my appointment.
RegisterNeutralInformal
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA2-
Part of speechadverb
Collocationsrespond immediately, act immediately, notify immediatelycome straight away, leave straight away, tell straight away, do it straight away, respond straight away
Antonymseventually, later-
Common mistakesUsing 'immediate' instead of 'immediately'., Confusing with 'eventually', which means later., Incorrectly placing 'immediately' at the end of a sentence.Using 'straight away' in formal writing., Confusing 'straight away' with 'right away' in different contexts., Incorrectly placing 'straight away' in the middle of a sentence.
Usage notesUse 'immediately' to emphasize urgency or promptness. It's appropriate in both spoken and written English, but avoid in very casual contexts.Use 'straight away' in casual conversations to express immediacy. It's more common in British English than in American English.

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Immediately
Straight away

Frequently asked questions: Immediately vs Straight away

What's the difference between Immediately and Straight away?

Immediately: right away, without waiting Straight away: Immediately or right now

Which is more formal: Immediately and Straight away?

Immediately is the most formal of these.

Which is more common: Immediately and Straight away?

Immediately is the most common in everyday English.

Can you show an example of each?

Immediately: He answered the question immediately after it was asked. Straight away: I need to go straight away to catch my appointment.

Can I use Immediately and Straight away interchangeably?

Not always. Immediately and Straight away 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.