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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
is not illustrated
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is not illustrated" is correct and usable in written English.
It can be used when indicating that something has not been visually represented or depicted in a particular context. Example: "The concept of quantum entanglement is complex and is not illustrated in the textbook."
✓ Grammatically correct
Science
Academia
News & Media
Alternative expressions(20)
is not shown
is left out
is not replicated
is not revealed
is not acknowledged
is not cited
is not written
is absent
is not mentioned
is not specified
is not commemorated
is not informed
remains unaddressed
is not indicated
is not substantiated
is not demonstrated
is omitted
is not identified
is not included
does not appear
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
18 human-written examples
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Academia
To keep the comparison fair, this scenario is not illustrated.
The case when 30 m < dsd < 100 m is not illustrated since there is no cross-over point.
The SLF produced with the Hamacher -norm differs slightly from the multiplication approach and is not illustrated.
The scenario MS4 leading to 34 cars per km (4 × Minimum davg[i]) is not illustrated by an own figure because here, CBP (and therefore also SBP and HBP) is negligibly small - CBP below 0.01%.
1 This table is not illustrated in Fig. 4 to avoid cluttering. 2 The DHT scheme, like the clustering scheme, is designed as a building block and can be easily replaced by any other scheme.
Human-verified similar examples from authoritative sources
Similar Expressions
42 human-written examples
WORST: Small inventory, and price guide isn't illustrated.
News & Media
This book isn't illustrated, except for the front cover, but it is a neat read.
News & Media
Too bad they are not illustrated.
News & Media
(They have also added dozens of period drawings and contemporary photographs, whereas the originals were not illustrated).
News & Media
At the bottom of each pixel, there are CMOS transistors to readout collected carriers, which are not illustrated for simplicity.
Science & Research
Expert writing Tips
Best practice
When using "is not illustrated", ensure the context clearly indicates what is missing a visual representation. For example, "The effect of this variable is not illustrated in the graph, but it's discussed in the text."
Common error
Avoid using "is not illustrated" when a concept is simply not explained or discussed, rather than specifically lacking a visual representation. Use "is not explained" or "is not discussed" instead.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is not illustrated" primarily functions as a descriptive statement indicating the absence of a visual representation. As confirmed by Ludwig AI, it's a correct and usable phrase for specifying when something lacks a visual depiction. Examples show its use in technical contexts where diagrams or figures are expected.
Frequent in
Science
50%
Academia
33%
News & Media
17%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "is not illustrated" is a grammatically sound and practically useful expression for indicating the absence of a visual representation, according to Ludwig AI. It appears most frequently in scientific and academic contexts, serving to inform readers about missing visual aids. While relatively uncommon, it effectively clarifies the scope of visual information within a document. When using the expression, ensure the context makes clear what specific element lacks illustration and consider alternatives like "is not depicted" or "is not shown" for variety.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is not depicted
Focuses on the absence of a visual depiction, similar to the original phrase.
is not shown
Emphasizes that something is not visually presented or displayed.
is not represented visually
Highlights the lack of visual representation using more explicit language.
lacks illustration
Indicates the absence of an illustration.
is not graphically presented
Specifies that the information is not presented in a graphical format.
is not portrayed
Suggests the absence of a portrayal or representation.
is not visualized
Emphasizes the lack of visualization.
there is no illustration of
Uses a different grammatical structure to express the lack of illustration.
is not included in the figure
Specifies that something is excluded from a particular figure or visual.
does not feature an illustration
Highlights that something does not include an illustration.
FAQs
What does "is not illustrated" mean?
The phrase "is not illustrated" means that something is not shown visually, such as in a diagram, figure, or picture. It indicates the absence of a visual representation of a particular concept or item.
What can I say instead of "is not illustrated"?
You can use alternatives like "is not depicted", "is not shown", or "lacks illustration" depending on the context.
How to use "is not illustrated" in a sentence?
Use "is not illustrated" to indicate that a specific visual representation is missing. For example, "The detailed mechanism of this reaction is complex and is not illustrated in the diagram."
Is "is not illustrated" formal or informal?
The phrase "is not illustrated" is generally considered neutral and can be used in both formal and informal contexts, although it is more common in technical and academic writing.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested