Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
without unnecessary delay
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "without unnecessary delay" is correct and usable in written English.
You can use this phrase when referring to a specific action that someone needs to take. For example, "Please submit the needed paperwork to the office without unnecessary delay."
✓ Grammatically correct
News & Media
Academia
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
34 human-written examples
that the person was not brought before a magistrate without unnecessary delay". Nev.Rev.Stat.
Academia
Patients can walk in right off the street and get treated without unnecessary delay.
News & Media
Judge said this time it should not to be "adversarial", and should be held without unnecessary delay.
News & Media
The government also agreed to release immigrant children "without unnecessary delay" under an established preference ranking for custody.
News & Media
On September 9th, N.R.C. staff people suggested ordering power plants to review their ability to survive quakes and floods "without unnecessary delay".
News & Media
The judge in that case, Dolly Gee, ordered the government to release children "without unnecessary delay," and Homeland Security has so far been unsuccessful in appealing.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
26 human-written examples
Educational agencies that maintain student records must comply with requests for reviews without unnecessary delays.
Encyclopedias
"We want to ensure inquests can happen without unnecessary delays so families can find closure.
News & Media
Tracking systems are, therefore, needed to ensure that early detection results in early intervention without unnecessary delays.
Science
These data suggest that well-trained prehospital personnel can provide high-level care without unnecessary delays to definitive care.
Science
Flow managers were also able to assist residents in a timely manner and thereby enhanced the ability to get things right from the beginning without unnecessary delays and waste of resources.
Science
Expert writing Tips
Best practice
Use "without unnecessary delay" in legal or formal contexts when you need to emphasize the importance of acting promptly, but without implying recklessness. For example, "The documents must be filed without unnecessary delay to comply with the court order."
Common error
While "without unnecessary delay" is perfectly correct, it can sound overly formal or stiff in casual conversation. Opt for simpler alternatives like "quickly" or "as soon as possible" to maintain a natural tone.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "without unnecessary delay" functions as an adverbial phrase, modifying a verb by specifying the manner or timing of an action. As Ludwig AI confirms, the phrase is grammatically correct and is frequently used in formal contexts to emphasize promptness.
Frequent in
News & Media
56%
Academia
19%
Science
14%
Less common in
Formal & Business
8%
Wiki
3%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "without unnecessary delay" is a grammatically sound and relatively common adverbial phrase used to stress the importance of timely action. Ludwig AI confirms its validity and usability. While suitable for formal and professional contexts, simpler alternatives may be preferred in casual conversation. It appears frequently in "News & Media", academic, and scientific sources and should be used when promptness is required, but recklessness is to be avoided.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
expeditiously
Single word replacement. Conveys efficiency and speed in execution.
with all due haste
Emphasizes speed and urgency, an older idiom for quick action.
promptly
Single word replacement. Uses an adverb to emphasize immediate action.
in a timely manner
Focuses on appropriateness of timing, replacing specifics about the delay.
without undue hesitation
Replaces 'delay' with 'hesitation', focusing on decisiveness.
at the earliest opportunity
Highlights availability and seizing the first chance.
as soon as feasible
Shifts focus to practicality and possibility of timely action.
forthwith
A formal, single word replacement indicating immediately action.
directly
Single word adverb, focus on avoidance of intermediaries and direct action.
without lingering
Highlights the avoidance of staying longer than necessary, indicating a swift transition.
FAQs
How can I use "without unnecessary delay" in a sentence?
Use "without unnecessary delay" to emphasize the importance of prompt action, as in, "The application should be processed "as soon as possible", or at least without unnecessary delay."
What phrases are similar to "without unnecessary delay"?
Alternatives to "without unnecessary delay" include "promptly", "expeditiously", or "in a timely manner".
Is it more appropriate to use "without unnecessary delay" or "immediately"?
"Immediately" implies instantaneous action, while "without unnecessary delay" suggests acting as quickly as reasonably possible. The better choice depends on the specific situation.
What does it mean to do something "without undue delay"?
To do something "without undue delay" means performing the action "as soon as feasible", avoiding any delays that are not justifiable or reasonable. This is very similar to acting "without unnecessary delay".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested