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
relentless vigor
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "relentless vigor" is correct and usable in written English.
It can be used to describe a persistent and energetic approach to a task or challenge. Example: "Her relentless vigor in pursuing her goals inspired everyone around her."
✓ Grammatically correct
News & Media
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
2 human-written examples
But "the media, together with certain members of the arts community," he said "are campaigning with relentless vigor to force me to step down".
News & Media
The book "is not so much an explanation as an indictment of the poet, conducted with relentless vigor and humane bitterness," Geoffrey H. Hartman wrote on the front page of The New York Times Book Review.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
She lost 15 pounds and went through bouts of listlessness, then days full of energy, then more dips in vigor, a relentless cycle as the medication and the infection worked their course.
News & Media
"In this, the centennial of Ronald Reagan's birth, the best way to honor him and his memory is to promote our conservative principals with the same vigor and relentless optimism that he used to successfully expand the conservative base," Cardenas said.
News & Media
That episode on Monday night of "Ten P.M.," broadcast on a popular independent Egyptian satellite channel, appeared to undercut two weeks of relentless state propaganda and inject new vigor into a protest movement that some supporters feared had begun to wane.
News & Media
His energy was relentless.
News & Media
Mr. Bradley's lethargic demeanor and laid-back campaigning style looked increasingly like indifference, and the vigor of Mr. McCain turned ever more vinegary under the relentless pressure, in the form of attack ads, applied by forces allied with Mr. Bush.
News & Media
With vigor.
News & Media
And vigor.
News & Media
Louisville celebrated with vigor.
News & Media
They were relentless, unemotional.
News & Media
Expert writing Tips
Best practice
Use "relentless vigor" to describe an individual or group's sustained effort and energy in pursuing a challenging goal. It effectively conveys a sense of unwavering determination and drive.
Common error
Avoid using "relentless vigor" in situations where a more moderate or balanced approach is preferable. The phrase implies intensity and may not be suitable for every scenario.
Source & Trust
97%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "relentless vigor" functions primarily as a descriptive phrase, combining an adjective ("relentless") with a noun ("vigor") to characterize the intensity and persistence of effort. As Ludwig AI indicates, it is a grammatically correct and usable phrase in English.
Frequent in
News & Media
100%
Science
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
"Relentless vigor" is a phrase used to describe persistent and energetic effort, particularly when facing challenges. As Ludwig AI confirms, it is grammatically correct and suitable for use in written English. Though examples are relatively rare, the phrase is most commonly found in news and media contexts, highlighting its descriptive power in portraying unwavering determination. Alternatives like "unyielding energy" or "persistent drive" can be used to convey similar meanings, but "relentless vigor" distinctly emphasizes both the intensity and continuity of the effort. Remember to use it judiciously, avoiding overuse in contexts that call for a more balanced or moderate approach.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unyielding energy
Replaces "relentless" with "unyielding", focusing on the unwavering aspect of energy.
persistent drive
Substitutes "vigor" with "drive", highlighting motivation and ambition.
untiring zeal
Emphasizes enthusiasm and dedication, replacing "vigor" with "zeal".
dogged determination
Focuses on the persistent and unwavering nature of the determination.
unflagging enthusiasm
Highlights the continuous and energetic nature of enthusiasm.
unstoppable force
Conveys an overwhelming power and momentum.
indomitable spirit
Highlights resilience and an inability to be subdued.
resolute commitment
Focuses on the firmness and unwavering nature of the commitment.
tenacious pursuit
Emphasizes the persistent and determined effort in chasing a goal.
tireless dedication
Highlights continuous and unwavering commitment.
FAQs
How can I effectively use "relentless vigor" in a sentence?
Use "relentless vigor" to describe someone's continuous and forceful effort towards achieving a goal. For example: "The team pursued the project with "relentless vigor", overcoming every obstacle in their path."
What are some alternatives to "relentless vigor" that I can use?
Depending on the context, you could use alternatives like "unyielding energy", "persistent drive", or "untiring zeal".
Is "relentless vigor" a formal or informal phrase?
"Relentless vigor" is suitable for both formal and informal contexts, although it is more commonly found in news and media or professional settings due to its descriptive and somewhat emphatic nature.
In what situations is it most appropriate to use the phrase "relentless vigor"?
It is most appropriate to use "relentless vigor" when you want to emphasize the continuous, intense, and unwavering energy someone or something is applying to a particular task or objective.
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
97%
Authority and reliability
4.1/5
Expert rating
Real-world application tested