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
permissible maximum
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "permissible maximum" is correct and usable in written English.
It can be used in contexts where you are discussing limits or thresholds that are allowed or acceptable within certain parameters. Example: "The permissible maximum for this experiment is 50 milliliters of solution to ensure safety."
✓ Grammatically correct
Science
Academia
News & Media
Alternative expressions(2)
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
11 human-written examples
In practice it is known that unstable roll movements may occur, especially with unfavorable combinations of vehicle and trailer conditions, operating slightly above the permissible maximum speed.
Science
The permissible maximum speed of a passenger train through curves is the level beyond which a railroad considers passengers will suffer unacceptable centrifugal force; the limit beyond which derailment becomes a risk is considerably higher.
Encyclopedias
For transfer credit done under a system other than the quarter system, the permissible maximum units are calculated at an appropriate ratio of equivalence (i.e. credit is converted into quarter units).
Academia
For transfer credit done under a system other than the quarter system, the permissible maximum units are calculated at an appropriate ratio of equivalence.One semester unit or hour usually equals 1.5 quarter units.
Academia
Nine samples were analyzed and the lead content found varied from 0.64 to 8.25 μg L− 1, being always lower than the permissible maximum level stipulated by the Brazilian Ministry of Health, which is 10.0 μg L− 1.
Science
The credit allowed at Stanford for one quarter's work may not exceed the number of units that would have been permissible for one quarter if the work had been done at Stanford; for work done under a system other than the quarter system, the permissible maximum units are calculated at an appropriate ratio of equivalence.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
The concentration was lower than the World Health Organization's maximum permissible limit (WHO Permissible Limit 15 μg/kg-bw/week).
The concentrations seems to be much lower than World Health Organization's maximum permissible limit (WHO Permissible Limit 15 μg/kg-bw/week) [ 37].
The classifications are desirable, maximum permissible and the values exceed maximum permissible limit are termed as not permissible.
Science
Throughout the year he was paid £24,004, the maximum permissible.
News & Media
They set the maximum permissible concentration of pollutants.
News & Media
Expert writing Tips
Best practice
When using "permissible maximum", ensure that the context clearly defines what is being limited or regulated. Specify the units of measurement or the criteria being assessed to avoid ambiguity.
Common error
Avoid using "permissible maximum" when you actually mean the ideal or desirable maximum. "Permissible" refers to what is allowed, not necessarily what is optimal. Use "optimal maximum" or "ideal maximum" if that's your intended meaning.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "permissible maximum" primarily functions as a compound adjective modifying a noun (often "level", "limit", or "concentration"). It indicates the greatest extent or degree that is allowed or tolerated. Ludwig provides examples where this phrase clarifies specific regulated thresholds.
Frequent in
Science
50%
Academia
30%
News & Media
20%
Less common in
Encyclopedias
0%
Formal & Business
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "permissible maximum" serves as a compound adjective denoting an upper limit that is officially allowed, commonly found in scientific, academic, and regulatory contexts. As Ludwig AI confirms, its usage is grammatically correct. While not exceedingly common, it is useful for establishing clear thresholds in formal communication. Remember to define the units or criteria associated with this limit for clarity. Common alternative include phrases like "allowable maximum" or "acceptable upper limit". Avoid confusing it with the "desirable maximum", which represents the ideal rather than the allowed limit. Its function is to provide precise specifications across diverse fields, as highlighted by the examples from Ludwig.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
allowable maximum
Replaces "permissible" with "allowable", indicating something permitted or allowed.
highest permissible level
Substitutes "maximum" with "highest level" and maintains "permissible".
acceptable upper limit
Uses "acceptable" instead of "permissible" and specifies "upper limit" for clarity.
maximum allowed
Reorders the words for a slightly different emphasis.
maximum threshold permitted
Adds redundancy with "permitted" for emphasis.
regulatory limit
Implies a limit set by regulations, replacing "permissible" with a context-specific term.
maximum authorized limit
Replaces "permissible" with "authorized", implying official approval.
legal ceiling
Uses a more metaphorical term "ceiling" to represent the upper boundary permitted by law.
maximum tolerated level
Focuses on tolerance rather than permission.
utmost allowable extent
Uses more formal and emphatic vocabulary.
FAQs
How can I use "permissible maximum" in a sentence?
You can use "permissible maximum" to refer to the upper limit allowed by regulations or guidelines. For example: "The "permissible maximum" level of lead in drinking water is set by the EPA."
What's the difference between "permissible maximum" and "allowable maximum"?
The terms "permissible maximum" and "allowable maximum" are often used interchangeably. Both refer to the highest limit that is allowed. The choice between them often comes down to stylistic preference.
Is it redundant to say "permissible maximum limit"?
Yes, "permissible maximum limit" is somewhat redundant, as "maximum" already implies a limit. It's generally better to stick to either "permissible maximum" or "permissible limit".
What are some contexts where "permissible maximum" is commonly used?
"Permissible maximum" is frequently used in discussions of environmental regulations, safety standards, academic grading (e.g., maximum transfer units), and financial limits. It often appears in scientific and technical documentation.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested