Translation guide
How to express doing something immediately, without any hesitation or pause, in natural Japanese.
To say that an action happens right away, with no delay.
The most common and neutral way to say 'immediately' or 'right away'. Can be used in most situations.
He replied without a moment's delay.
Please come without a moment's delay.
More formal and emphatic than すぐに. Often used in official announcements, instructions, or written contexts.
Evacuate without a moment's delay.
Implies doing something promptly, often with a sense of eagerness or without wasting time. Common in both speech and writing.
Without a moment's delay, let's get down to business.
He set to work without a moment's delay.
Very strong, formal, and often used in legal or disciplinary contexts. Means 'instantly' or 'on the spot'.
Anyone violating the rules will be asked to leave without a moment's delay.
To emphasize that someone acts decisively, without pausing to think or doubt.
Literally 'without hesitating'. Natural for describing actions done without indecision.
She stepped in to help without a moment's delay.
More formal/literary version of ためらわずに. Often used in writing.
He made the decision without a moment's delay.
Idiomatic expression meaning 'without a moment's gap', often used for quick reactions or responses.
He retorted without a moment's delay.
To convey urgency, that something should be done at the earliest possible moment.
Standard way to say 'as soon as possible'. Polite and widely used.
Please contact us without a moment's delay.
Means 'urgently' or 'ASAP'. Common in business emails and formal requests.
Please reply without a moment's delay.
Even more urgent than 至急. Used when something is extremely time-sensitive.
Please check this without a moment's delay.
すぐに is the safest, most neutral choice for 'immediately'. 直ちに is formal and often used in commands or official contexts. 早速 carries a nuance of 'without wasting time' and is often used when starting something promptly.
Come right away. (casual)
Come immediately. (stern command)
Let's get started right away. (eager)
Phrases like '一瞬の遅れもなく' are not natural in most contexts. Stick to the options above for natural Japanese.