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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
ultimate deadline for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "ultimate deadline for" is correct and usable in written English.
You can use it when referring to the final date or time by which something must be completed or submitted. Example: "The ultimate deadline for submitting your application is March 15th."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(5)
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
3 human-written examples
Downing Street estimates suggest that the ultimate deadline for striking a Brexit deal with the European Union could be as late as mid March, which would be in line with Hunt's comments.
News & Media
The OPCW says its self-imposed deadlines were soft target dates and is confident the ultimate deadline for the complete destruction of Syria's chemical stockpile by 30 June 2014 is still "completely realistic".
News & Media
January 1st is the ultimate deadline for reference letters, essays, and the application itself.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
The unseemly and unsettling spectacle of a last-minute legal scramble in the shadow of the ultimate deadline, with the condemned inmate waiting for word of his fate just outside the death chamber, may suggest that the Supreme Court does not render considered justice when it is asked to halt an execution.
News & Media
A compromise still looks like the most likely option, but if talks collapse Cameron could delay the referendum to allow time for further talks, as his ultimate deadline is hold the vote before 2017.
News & Media
California offered to compromise on the "slope of the curve," Nichols says, say by giving automakers a bit more time to meet the most stringent goals, in exchange for a commitment to meet them by the ultimate deadline.
News & Media
This book was thus a race against the ultimate deadline.
News & Media
In any case, he extended the ultimate deadline until the following Friday.
News & Media
Though he is facing the ultimate deadline, Morse uses his superior intelligence to sort things out.
News & Media
But what Obama and Geithner have stated is that the new deadline is the ultimate deadline.
News & Media
SAN FRANCISCO, Oct. 15 — After emerging from 140 days in the political section of Tehran's dreaded Evin Prison, Ali Shakeri had one main thing on his mind Monday — not running afoul of another government by failing to meet the ultimate Oct. 15 deadline for filing his United States income taxes.
News & Media
Expert writing Tips
Best practice
Avoid redundancy by not using phrases that reiterate the finality of the deadline immediately after using "ultimate deadline for". Choose strong verbs associated with submission or completion.
Common error
Avoid using "ultimate deadline for" when referring to soft deadlines or suggested target dates. The phrase implies a non-negotiable final date. If there's a chance of extension, opt for phrases like "target date" or "preferred completion date".
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "ultimate deadline for" functions as a determiner phrase modifying a noun, specifying the final date or time by which a particular action or task must be completed. Ludwig identifies this phrase used to denote the last possible moment for submission or completion.
Frequent in
News & Media
60%
Science
20%
Wiki
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "ultimate deadline for" is a grammatically sound and relatively uncommon expression used to emphasize the finality of a deadline. Ludwig's analysis confirms its correct usage in specifying the last possible moment for completing an action, often appearing in news and media contexts. While semantically strong, it's important to ensure the context aligns with the non-negotiable nature of an "ultimate" deadline, avoiding its use for softer target dates. When writing, consider alternative phrases like "final submission date" or "absolute cutoff date" for variety, but be mindful of maintaining clarity and avoiding redundancy. The expression is suitable for neutral to formal communication depending on the overall tone of the content.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
final submission date
Replaces "ultimate deadline" with a more direct term for the last day to submit something.
final date for submission
Similar to 'final submission date' but uses a slightly different word order.
absolute cutoff date
Emphasizes the unyielding nature of the deadline, suggesting no extensions are possible.
latest possible date
Focuses on the latest acceptable time, highlighting that it's the last chance.
last day to submit
Simplifies the phrase, focusing on the action of submitting and the final opportunity.
drop-dead date
An informal term stressing the severity of missing the deadline.
unextendable deadline
Highlights the fact that deadline can't be extended
last date for completion
Replaces "ultimate deadline" with "last date for completion" to focus on the action of finishing something.
concluding date
Replaces "ultimate deadline" with "concluding date" making it more formal.
terminal date
Replaces "ultimate deadline" with "terminal date" making it more technical.
FAQs
How can I use "ultimate deadline for" in a sentence?
The phrase "ultimate deadline for" is used to specify the final date by which something must be completed or submitted. For instance, "The "ultimate deadline for" the project proposal is next Friday."
What phrases are similar to "ultimate deadline for"?
Alternatives to "ultimate deadline for" include "final submission date", "absolute cutoff date", or "latest possible date".
Is it correct to say "the ultimate deadline"?
Yes, "the ultimate deadline" is grammatically correct. Adding "for" specifies what action needs to be completed by that deadline, e.g., "the "ultimate deadline for" registration".
What is the difference between "deadline" and "ultimate deadline"?
"Deadline" refers to a specific time or date by which something must be done. "Ultimate deadline" emphasizes that it's the very last opportunity to complete the action; there will be no further extensions.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested