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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
presumably true
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "presumably true" is correct and usable in written English.
It can be used when you want to indicate that something is assumed to be true based on available evidence or reasoning, but without absolute certainty. Example: "The data suggests a significant increase in sales, so it is presumably true that our marketing strategy is effective."
✓ Grammatically correct
News & Media
Science
Encyclopedias
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
15 human-written examples
That was presumably true, but only the Los Angeles Times had printed it.
News & Media
Her response suggested that she managed to find an equally compelling, inspirational narrative from the sadder, presumably true, version of her father's history: "Thank God," she said.
News & Media
Now and then, the comedy breaks into the horror itself, and the result is stories, presumably true enough, whose macabre humor easily surpasses that of any Surrealist invention.
News & Media
It is presumably true that most organ sellers would be poor; on the other hand, many of the recipients would be poor also.
News & Media
This is presumably true.
Science
These elements are important conditioners that make it possible to establish a presumably true image (a specific narrative) of organizational culture.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
We have sometimes also used the conceptually different and perhaps more logically consistent information-based approach (10, 11), in which models are viewed as being approximations to some unknown but presumably complicated true mechanism, and the best model is the one with minimal distance to the true mechanism, after correction for bias introduced by the number of parameters.
Science
The same would presumably be true of an op-ed writer's columns or an activist's slogans.
News & Media
(This is presumably not true in places frequented by unattached young people, but I have never been young or unattached here, so I wouldn't know).
News & Media
And "The Country Girl" is about people who love the theater so much it hurts, which is presumably also true of this production's illustrious participants.
News & Media
It is presumably a true marker of an asteroid impact with global repercussions, and this further complicates understanding of the mass extinction.
News & Media
Expert writing Tips
Best practice
Use "presumably true" when you have some evidence or reason to believe something is true, but you lack definitive proof. It's suitable for expressing a reasoned assumption.
Common error
Avoid using "presumably true" when you possess concrete evidence. The phrase implies uncertainty; stronger language is appropriate if you have solid proof.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "presumably true" functions as an adverbial modifier qualifying an adjective. It indicates a provisional acceptance of truth, based on available information but without absolute certainty. Ludwig examples show it's used to express assumptions in various contexts.
Frequent in
News & Media
32%
Science
50%
Encyclopedias
4%
Less common in
Wiki
1%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "presumably true" is a versatile expression used to indicate a qualified acceptance of truth. As confirmed by Ludwig, it signals that something is likely true based on available evidence but without absolute certainty. It is commonly found in news, scientific writing, and encyclopedic content, making it suitable for both formal and informal contexts. The phrase serves to express assumptions and encourage critical evaluation. Alternatives like "likely true" or "assumed to be true" can be used depending on the specific nuance you wish to convey. When using "presumably true", ensure that it aligns with the degree of certainty you intend to express, avoiding its use when stronger evidence is available.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
likely true
Indicates a high probability of being true, focusing on the likelihood.
probably true
Emphasizes a good chance of being true, suggesting a strong possibility.
assumed to be true
Highlights the assumption aspect, indicating acceptance as true without concrete proof.
apparently true
Focuses on the outward appearance of truth, suggesting truth based on observation.
ostensibly true
Similar to 'apparently', but with a hint of potential deception or superficiality.
seemingly true
Indicates truth based on initial impressions, possibly subject to change.
reportedly true
Highlights that the truth is based on reports or hearsay, not direct knowledge.
reputedly true
Similar to 'reportedly', emphasizing the reputation or common belief in its truth.
allegedly true
Indicates a claim of truth that is yet to be proven or might be contested.
supposedly true
Suggests truth based on common belief or what is generally accepted, potentially without verification.
FAQs
What does "presumably true" mean?
The phrase "presumably true" indicates that something is likely true based on available evidence or reasoning, but without absolute certainty or definitive proof.
When should I use "presumably true" in my writing?
Use "presumably true" when you want to convey that something is assumed to be true based on some level of evidence but cannot be definitively confirmed. Alternatives include "likely true" or "assumed to be true".
What's the difference between "presumably true" and "certainly true"?
"Presumably true" implies a degree of uncertainty based on available evidence, while "certainly true" suggests complete confidence and absence of doubt. If you have solid evidence, "certainly true" is a stronger choice; otherwise, "presumably true" is more appropriate.
Are there formal or informal alternatives to "presumably true"?
For more formal contexts, consider "assumed to be true" or "ostensibly true". Informal alternatives might include "likely true" or "probably true". The choice depends on the tone and audience of your 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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested