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
less stronger
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "less stronger" is not correct in English.
The correct form would be "less strong." You can use "less strong" when comparing the strength of two or more things, indicating that one is not as strong as the other. Example: "This fabric is less strong than the one we used last time."
⚠ May contain grammatical issues
Science
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
8 human-written examples
Revenues also are growing strong, albeit again slightly less stronger compared to the year before.
News & Media
This instability is less stronger in the case of the equivalent single component two-fluid flow.
Science
Furthermore, most peaks became more or less stronger upon titration with L-fucose, which may indicate that the structure of odorranalectin in bound form is more stable than in free form.
Science
But concerning the other activities, they represent generally more or less stronger inhibitors than UFH.
Science
In contrast to the previous smaller series (Stockhammer et al, 2000), we found a strong correlation of VEGF with CSF lactate and a less stronger correlation with CSF albumin.
Science
Immunoelectron microscopy detection of Aβ was much less stronger than of APP, since optimal intracellular labeling with the antibodies for Aβ forms in our model requires pre-treatment with formic acid which is not compatible with EM processing.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
7. Are your erections less strong?
News & Media
7 Are your erections less strong?
News & Media
And the other's much less strong.
News & Media
But had it seemed stronger or less strong?
News & Media
"At lunch maybe a little less strong, more rounded.
News & Media
Expert writing Tips
Best practice
Always use "less strong" instead of "less stronger". "Stronger" is already a comparative adjective, so using "less" is redundant and grammatically incorrect.
Common error
Be mindful of double comparatives. Avoid using both "less" and the '-er' suffix (like in "stronger") together. The correct form is simply "less strong."
Source & Trust
84%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "less stronger" functions as a comparative adjective phrase, attempting to describe a lower degree of strength. However, according to Ludwig AI, it's grammatically incorrect. The correct form is "less strong" or alternative adjectives such as "weaker".
Frequent in
Science
43%
News & Media
57%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "less stronger" is grammatically incorrect. The correct form is "less strong" or a single-word alternative like "weaker". As Ludwig AI points out, using both "less" and the '-er' suffix creates a double comparative, which is unnecessary. While the phrase appears in some sources, including scientific and news media, this does not make it correct. Always opt for "less strong" to ensure grammatical accuracy and clarity in your writing. Other possible alternatives are "not as strong", "less potent", or "less powerful" depending on the context.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
less strong
Direct correction of the original phrase, fixing the grammatical error by removing the comparative form from "stronger".
weaker
Single-word substitute for "less strong", indicating a reduction in physical or metaphorical strength.
not as strong
Rephrasing that provides a clearer comparison, emphasizing the relative lack of strength.
less potent
Similar to "less strong", but often used in contexts of chemical or medicinal strength or effectiveness.
less intense
Replaces "strong" with "intense", suitable for describing feelings, light, or sound.
less powerful
Alternative to "less strong", often used when describing forces, governments, or machines.
milder
Implies a gentler or more moderate form of something, often used with flavors, weather, or emotions.
diminished
Indicates a reduction in strength or intensity, suggesting a gradual decrease.
reduced
A general term indicating that something has been made smaller or less in amount, degree, or size.
less effective
Focuses on the diminished ability to produce a desired result.
FAQs
What is the correct way to say something is not as strong?
The correct way is to say "less strong" or "not as strong". The phrase "less stronger" is grammatically incorrect.
What's wrong with saying "less stronger"?
Saying "less stronger" is redundant because "stronger" is already a comparative adjective. The word "less" is used to form the comparative of adjectives that don't take the "-er" suffix.
Can I use "weaker" instead of "less strong"?
Yes, "weaker" is a perfectly acceptable alternative to "less strong". It's a single word that conveys the same meaning.
In what contexts would I use "less strong"?
You can use "less strong" (or, better, "less strong") in any context where you want to indicate that something has a reduced level of strength, intensity, or power compared to something else.
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
84%
Authority and reliability
1.8/5
Expert rating
Real-world application tested