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
weakly less than
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "weakly less than" is correct and usable in written English.
It is typically used in mathematical or statistical contexts to describe a relationship where one quantity is less than another, but not strictly so. Example: "In this analysis, we consider the variable A to be weakly less than variable B, indicating that A can be equal to B or less."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(18)
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
1 human-written examples
As expected from thermodynamics modelling, strong base pairing at position −8 increased the rate of second phosphodiester bond cleavage (note the match of theoretical and experimental results), while the most of the changes between positions −7 and +1 affected the reaction relatively weakly (less than two-fold as compared with EC16WT).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Less Than Jake.
Wiki
Indeed, X4-infected MDM are mainly highly autophagic, with more than 10 autophagosomes per cell section, and thus are less infected than R5-infected MDM that are essentially weakly autophagic (less than 10 autophagosomes per cell section).
Science
We modified the criteria and also scored the tumor cells/normal epithelia semi-quantitatively as follows: negative, no positive cells; weakly positive, less than 30% cells positive; strongly positive, more than 30% cells positive.
Science
Scoring criteria for stromal cells is as follows: negative, no fibroblasts are SPARC positive; weakly positive, less than 50% of fibroblasts are SPARC positive; and strongly positive, more than 50% of fibroblasts are SPARC positive [2].
Science
Scoring criteria for expression of laminin-5 γ2 chain is as follows: negative, no laminin-5 γ2 positive cells; weakly positive, less than 30% cells are laminin-5 γ2 positive; and strongly positive, more than 30% of cells are laminin-5 γ2 positive [24].
Science
The extent of staining in tumor stroma/normal mucosa stroma was recorded according to the criteria of Koukourakis MI et al. as follows: negative, no positive fibroblasts; weakly positive, less than 50% of fibroblasts positive; strongly positive, more than 50% of fibroblasts positive [ 14].
Science
Table 1 Performance comparison of coding design strategies and topology design strategies Encoding and decoding cost Security Success rate Coding design strategies o(h2) - o(h3) Shannon or weakly ≈1 Topology design strategies (ISNS) o(h) Weakly Wiretappers' rate less than 0.1 Wiretappers' rate less than 0.2, more than 0.1 ≈1 >0.1.
They were rated positive if a clear brown or purple color was detected in the majority of the cells, as weakly positive if less than 50% of the cells were stained (the majority weakly)), and as negative if no staining was detectable.
Science
In the range of LLD/L between 0.20 and 0.35, the gain reaches 90 dB and is weakly temperature-dependent with less than 10% reduction in the range of 300 K down to 95 K.
Science
There is a strongly absorbing region at energies above 3 eV, in which absorption increases with the Si content of the layers, and a weakly absorbing region at less than 3 eV, which is not strongly affected by Si content.
Science
Expert writing Tips
Best practice
When using "weakly less than" in technical writing, always provide context to clarify the degree of difference. Specify if the difference is statistically significant or practically relevant.
Common error
Don't use "weakly less than" when a more precise term is available. If you mean "slightly less than", use that instead to avoid confusion.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "weakly less than" functions as a comparative qualifier, modifying the degree to which one thing is less than another. As Ludwig AI confirms, it's usable in written English, typically in mathematical or statistical contexts.
Frequent in
Science
80%
News & Media
10%
Wiki
10%
Less common in
Formal & Business
0%
Reference
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "weakly less than" serves as a comparative qualifier, indicating a subtle or marginal difference. As Ludwig AI points out, it is grammatically sound and appropriate for use in technical and formal writing. The phrase appears most frequently in scientific contexts. When using this phrase, clarity is key; avoid it if a more precise term will better convey your intended meaning.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
slightly smaller than
Emphasizes a small difference in magnitude.
somewhat below
Indicates a position or level that is a bit lower.
marginally inferior to
Suggests a slight degree of lower quality or effectiveness.
not quite as much as
Highlights a deficiency in quantity or extent.
modestly below
Implies a moderate decrease from a certain point or level.
just under
Indicates proximity to a specific threshold from below.
hardly exceeding
Points out that something barely goes over a particular limit.
faintly under
Suggests that something is just slightly below another thing
not as strong as
Indicates a comparative lack of strength.
a touch smaller than
Emphasizes a tiny difference in measure.
FAQs
How can I use "weakly less than" in a sentence?
The phrase "weakly less than" is typically used to indicate a subtle or marginal difference between two values. For example: "The effect of the new drug was "weakly less than" that of the standard treatment".
What does "weakly less than" mean in statistical contexts?
In statistics, "weakly less than" suggests a relationship where one variable is either less than or equal to another. It's often used to define conditions or set boundaries in data analysis.
What are some alternatives to using the phrase "weakly less than"?
Alternatives include "slightly less than", "not much greater than", or "approximately equal to depending on the degree of precision required in your statement.
In what situations is it appropriate to use "weakly less than"?
This phrase is suitable when describing subtle differences that may not be statistically significant but are still worth noting, particularly in scientific or technical contexts.
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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested