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
rigorously speaking
Grammar usage guide and real-world examplesUSAGE SUMMARY
"rigorously speaking" is correct and usable in written English.
You can use it to emphasize when you are referring to something in a very exact or precise manner. For example, "rigorously speaking, the definition of a mammal includes the presence of hair or fur."
✓ Grammatically correct
Science
News & Media
Alternative expressions(20)
with utmost precision
obviously speaking
in exact terms
by the book
systematically speaking
strictly speaking
in a formal manner
logically speaking
logically engaging
rationally speaking
clearly speaking
ideally speaking
judging by logic
naturally speaking
understandably speaking
consistently speaking
properly speaking
from a logical standpoint
in my opinion
from a technical standpoint
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
13 human-written examples
Thus, rigorously speaking, one can produce a glassy material from a polymer, metal, or ceramic.
We note however that, rigorously speaking, we should say that is left upper and right lower semicontinuous.
Science
Rigorously speaking, the link quality and the radio range will also affect energy consumption in addition to the hop counts.
Rigorously speaking, Eq. 11 is equivalent to Eq. 10 only if the bathymetry is flat (∂h/∂x = 0, ∂h/∂y = 0).
Science
So, rigorously speaking, averaging different measurement errors is tricky.
Science
Rigorously speaking, cannot be directly interpreted as the probability that gene i is up/downregulated.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
46 human-written examples
Why speak rigorously to an audience of hundreds when you can ham it up a bit and spread the fruits of your research to millions?
News & Media
He said: "We have rigorously tested the proposed question, speaking to a wide range of people across Scotland.
News & Media
"A part of our job," Mr. Shelby said, speaking of the intelligence committees, "is to rigorously examine what our agencies do, what they need in resources, where are they lacking, and not to get too cozy with them".
News & Media
There was therefore no individual speaking features that can be said to rigorously distinguish among various levels.
Science
Nor has any Jewish theologian since Heschel succeeded in speaking to such a wide range of readers while rigorously attending to the nuances of Judaism.
News & Media
Expert writing Tips
Best practice
Use "rigorously speaking" to introduce a statement that requires a very precise or technical understanding. It signals that you are about to offer a definition or explanation that adheres strictly to formal rules or criteria.
Common error
Avoid using "rigorously speaking" in casual conversations or informal writing where a high degree of precision isn't necessary. It can sound overly formal or pretentious if the situation doesn't warrant it.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "rigorously speaking" functions as an adverbial phrase, modifying the entire sentence that follows. It signals that the statement should be interpreted with a high degree of precision and adherence to formal or technical criteria. Ludwig AI confirms the grammatical correctness of this usage.
Frequent in
Science
70%
News & Media
20%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "rigorously speaking" serves as a crucial linguistic tool for signaling precision and accuracy in communication. As Ludwig AI points out, it's grammatically sound and most appropriate in formal, scientific, or technical contexts. When using this phrase, be mindful of your audience and the level of formality required. Alternatives like "strictly speaking" or "to be precise" can offer similar precision with varying degrees of formality. By understanding its function and purpose, you can effectively employ "rigorously speaking" to enhance the clarity and accuracy of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
strictly speaking
Replaces "rigorously" with "strictly", implying a similar level of precision but with a slightly different emphasis.
to be precise
Offers a more direct way to indicate that the following statement is intended to be exact and accurate.
in a strict sense
Highlights the adherence to a narrow and precise interpretation.
from a technical standpoint
Frames the statement as originating from a technical or expert perspective, emphasizing accuracy in that field.
in exact terms
Underscores the intention to use precise language and avoid ambiguity.
according to the letter
Implies adherence to the literal or explicit meaning, often in legal or formal contexts.
by the book
Indicates that something is done following established rules or guidelines meticulously.
in a qualified sense
Suggests that the statement holds true only under specific conditions or qualifications.
with utmost precision
Emphasizes the high degree of accuracy and attention to detail involved.
in a formal manner
Highlights the formality and adherence to established conventions in the statement.
FAQs
How can I use "rigorously speaking" in a sentence?
"Rigorously speaking" is typically used to introduce a more precise or technically accurate statement. For example, "Rigorously speaking, a tomato is a fruit, not a vegetable."
What are some alternatives to "rigorously speaking"?
Alternatives include "strictly speaking", "to be precise", or "in a strict sense", depending on the level of formality required.
Is "rigorously speaking" appropriate for informal conversations?
While grammatically correct, "rigorously speaking" is more suitable for formal writing or technical discussions where precision is crucial. It might sound out of place in casual conversation.
What does "rigorously speaking" emphasize in a statement?
The phrase emphasizes that the statement is based on a precise or technically accurate understanding, often adhering to formal rules or criteria. It clarifies that a layperson's definition might differ from a scientific or formal one.
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