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
fitter
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word "fitter" is correct and usable in written English.
You can use the word "fitter" to mean "more suitable" or "more appropriate". For example, "This new version of the software is much fitter for our needs."
✓ Grammatically correct
News & Media
Formal & Business
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
58 human-written examples
"I think we are starting to look fitter and we have much more of the ball because we are playing with a higher tempo and that's the way the manager wants us to play".
News & Media
By the end of his sentence, he was leaner and fitter than he'd ever been.
News & Media
If Serena Williams can bagel a fitter, younger opponent in the third set of a semi-final at a slam while appearing to be operating on half a lung and anaesthetised legs – as she did to beat the bewildered Timea Bacsinszky on Thursday – her opponent in Saturday's final, Lucie Safarova, has no chance.
News & Media
The fitter she became, the fatter I felt.
News & Media
Elm Park may be fitter this time and is respected, though he seems more of a St Leger type, as do Kilimanjaro and Storm The Stars.
News & Media
As you feel faster and fitter, increase the number of sets, increase the pace of the steady pace 200m and/or run each of the steady 200m in the set a little faster than the last.
News & Media
I wish in a way I could go back to that moment with the knowledge I had now and think: 'I'll dog this out,' but at the time I didn't know how to make myself fitter or stronger or train in the gym".
News & Media
On a walk around the factory, I ask Alan Quinn, a skilled fitter at BAE and Labour councillor for Prestwich, why he thinks Miliband attracts so much hostility.
News & Media
And it is certainly true that today's athletes, whatever their sports, tend to be taller, bigger, stronger and fitter than champions of the past.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Teddy Roosevelt, a future American president, was a Social Darwinist who believed that the fitter races were biologically bound to triumph over the less fit.
News & Media
The son of an iron-fitter, he was born in Salford and brought up in his parents' guesthouse in Blackpool.
News & Media
Expert writing Tips
Best practice
When comparing fitness levels, specify the context or activity. For example, instead of simply saying "He is fitter", say "He is fitter for endurance running."
Common error
Avoid using "fitter" without specifying the area of fitness. Saying someone is simply "fitter" can be vague. Instead, clarify by specifying the type of fitness, such as "fitter for the job" or "fitter for long-distance cycling."
Source & Trust
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The word "fitter" primarily functions as a comparative adjective. It is used to describe a higher degree of fitness or suitability. Ludwig showcases its common use in comparing physical conditions or the appropriateness of something for a specific purpose.
Frequent in
News & Media
45%
Formal & Business
25%
Science
20%
Less common in
Academia
5%
Encyclopedias
3%
Reference
2%
Ludwig's WRAP-UP
In summary, "fitter" serves as a comparative adjective, denoting an improved state of health, physical condition, or suitability. Ludwig underscores that while the word is grammatically correct and commonly used across diverse contexts—including news, business, and scientific domains—it's crucial to specify the area of fitness for clarity. When using "fitter", ensure you're comparing a defined aspect of fitness to avoid ambiguity. Remember, alternatives like "healthier", "more robust", or "better suited" are viable options depending on the nuances you wish to convey.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
in better shape
Focuses specifically on physical condition and appearance.
more healthy
Emphasizes overall well-being rather than just physical fitness.
more robust
Suggests strength and resilience, applicable in both physical and metaphorical contexts.
better conditioned
Highlights the result of training and preparation.
more adapted
Focuses on suitability for a particular environment or situation.
more skilled
Emphasizes improved competence or expertise.
better equipped
Highlights preparedness with necessary tools or resources.
more vigorous
Implies energy and activity.
in finer fettle
An idiomatic expression meaning in good condition.
more capable
Focuses on the ability to perform tasks effectively.
FAQs
How can I use "fitter" in a sentence?
What's a good alternative to the word "fitter"?
Depending on the context, alternatives to "fitter" include "healthier", "more robust", or "better suited".
Is it grammatically correct to say "fitter than"?
Yes, "fitter than" is grammatically correct and commonly used to compare the level of fitness or suitability between two subjects. For example, "She is "fitter" than she was last year".
What does "fitter" mean in the context of evolution?
In evolutionary biology, "fitter" refers to an organism's ability to survive and reproduce in its environment. A "fitter" organism is more likely to pass on its genes to the next generation.
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
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested