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
undesirable material
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "undesirable material" is correct and usable in written English.
It can be used to refer to substances or items that are not wanted or considered harmful in a particular context, such as waste management or safety regulations. Example: "The factory must ensure that all undesirable material is properly disposed of to maintain a safe working environment."
✓ Grammatically correct
Science
Wiki
News & Media
Alternative expressions(3)
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
10 human-written examples
In conjunction with the use of extensive databases, undesirable material can now be tracked in ways never understood in 1977.
Embedded digital monitoring could display or predict abnormal or undesirable material deflections or deformations and could suggest in real time where adjustments need to be made.
Science
To remove impurity and undesirable material, the bone chips were rinsed several times with hot water to remove tissue and fat.
Dense-medium separators have proven to be the most efficient processes for removing the undesirable material from run-of-mine coal.
Science
Protection of the environment post-mining is an important issue, especially where runoff and erosion can lead to undesirable material leaving post-mining landscapes and contaminating surrounding land and watercourses.
After the trachea has been intubated, a balloon cuff is typically inflated just above the far end of the tube to help secure it in place, to prevent leakage of respiratory gases, and to protect the tracheobronchial tree from receiving undesirable material such as stomach acid.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
50 human-written examples
It seems unlikely that anything significant will ever be built on them, although if construction picks up elsewhere they could conceivably serve as (phenomenally expensive) aggregate mines, since marine sand can usually be used to make concrete, as long as it's been rinsed sufficiently to remove all the salt and other undesirable materials.
News & Media
It is shown in this paper that such methods might lead to the selection of undesirable materials.
Science
Washing is a process, which can remove lipids and undesirable materials such as blood, pigment and odorous substances (Rawdkuen et al. [2009]).
Focused ion beam (FIB) technology is advantageous for material processing at nanoscale because of its high machining precision [11], but the ion beam may cause undesirable materials degradation and the equipment is costly [12, 13].
Science
During pretreatment, not only undesirable materials, especially lipids and heme proteins, were removed but also lipid oxidation products were eliminated as indicated by the lower PV and TBARS values.
Expert writing Tips
Best practice
When discussing waste management or environmental concerns, be specific about the type of "undesirable material" to provide clarity and context. For example, instead of broadly referring to "undesirable material", specify "chemical pollutants" or "plastic waste".
Common error
Avoid using "undesirable material" as a catch-all term without providing context. Overly broad usage can lead to ambiguity and weaken the impact of your message. Always clarify what makes the material undesirable.
Source & Trust
77%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "undesirable material" functions primarily as a noun phrase, where "undesirable" acts as an adjective modifying the noun "material". It refers to substances or items that are unwanted or have negative qualities. As indicated by Ludwig, the phrase is correct and usable in written English.
Frequent in
Science
60%
Wiki
30%
News & Media
10%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "undesirable material" is a grammatically sound and usable term that refers to substances or items that are unwanted or harmful in a specific context. Ludwig AI confirms its validity and usability. It is most frequently used in scientific and technical contexts, as well as in discussions about waste management and environmental protection. When using the phrase, ensure that you provide sufficient context to clarify what makes the material undesirable. Alternatives include "unwanted substance", "harmful substance", and "waste product", depending on the specific nuance you wish to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unwanted substance
Focuses on the aspect of being unwanted rather than necessarily harmful.
harmful substance
Emphasizes the potential for causing damage or negative effects.
waste product
Specifically refers to materials discarded after use.
contaminant
Implies the presence of a substance that pollutes or infects something.
pollutant
Highlights the environmental harm caused by the material.
impure matter
Focuses on the lack of purity or cleanliness.
deleterious component
A more formal term emphasizing harmful or damaging effects.
rejected matter
Emphasizes that the material has been refused or discarded.
objectionable element
Suggests the material is displeasing or offensive.
unfavorable component
A general term indicating a negative or adverse impact.
FAQs
How can I use "undesirable material" in a sentence?
You can use "undesirable material" to refer to any substance or item that is unwanted or considered harmful in a particular context. For example: "The factory must ensure that all "undesirable material" is properly disposed of."
What are some alternatives to saying "undesirable material"?
Depending on the context, you can use alternatives like "unwanted substance", "harmful substance", or "waste product".
Is it better to specify the type of "undesirable material" instead of using the general term?
In many cases, specifying the type of "undesirable material" is more effective. Instead of saying "undesirable material", try "chemical pollutants" or "plastic waste" to be more precise.
What makes certain materials considered "undesirable"?
Materials can be considered "undesirable" for various reasons, including their potential to cause harm to the environment, human health, or infrastructure. The specific reason depends on the context in which the "undesirable material" is being discussed.
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
77%
Authority and reliability
4.1/5
Expert rating
Real-world application tested