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
underlying rationale for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "underlying rationale for" is correct and usable in written English.
It can be used when discussing the fundamental reasons or justifications behind a decision, action, or concept. Example: "The underlying rationale for implementing the new policy is to improve employee productivity and satisfaction."
✓ Grammatically correct
Science
News & Media
Academia
Alternative expressions(14)
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
60 human-written examples
There is, however, another possible underlying rationale for regarding ignorance as a threat to self-government.
Science
"Marriage and human rights do not fall under the underlying rationale for the veto's existence".
News & Media
8 The basic needs approach also holds firm ground in underlying rationale for policy design.
Science
For each depiction, we asked participants a series of paired questions to obtain their ranked preference, ease of understanding, perceived susceptibility and underlying rationale for these perceptions.
Ostensibly, the underlying rationale for this formula is distributive justice.
Academia
Certainly the underlying rationale for his point of view has the ring of universal truth.
News & Media
Project stakeholders and contributors do not understand or embrace the underlying rationale for the project.
A major underlying rationale for imposing a substantial fine in a case like this is it's deterrent value".
News & Media
A major underlying rationale for imposing a substantial fine in a case like this is its deterrent value".
News & Media
The trouble, as Ted Honderich argues, is that none of these central themes seem to provide a firm or distinct underlying rationale for conservatism.
News & Media
The range of texts and media to which literature students are now regularly exposed, he argues, suggests that the underlying rationale for studying literature is changing.
News & Media
Expert writing Tips
Best practice
When using "underlying rationale for", ensure that the rationale you are describing is indeed a fundamental and not just a superficial reason. Clarity is key.
Common error
Avoid using "underlying rationale for" when a simple "reason" suffices. "Rationale" implies a more structured and thought-out justification, not just a basic cause.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "underlying rationale for" functions as a noun phrase that introduces the core justification or fundamental reasoning behind an action, decision, or concept. Ludwig examples and other sources confirm its function in providing a base explanation.
Frequent in
Science
40%
News & Media
35%
Academia
25%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "underlying rationale for" serves to introduce the fundamental justification or reasoning behind a decision, action, or concept. As Ludwig AI explains, it's grammatically correct and commonly found in academic, scientific, and news contexts. While the phrase is appropriate for formal settings, it's crucial to reserve it for situations where a robust and well-considered justification is being presented, rather than a mere reason. Alternatives such as "underlying reason for" or "primary motivation for" may be more suitable depending on the intended nuance. By understanding its proper usage, writers can effectively convey the core logic and principles that underpin various endeavors.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
underlying reason for
Changes the noun from 'rationale' to the more common 'reason'.
underlying basis for
Replaces 'rationale' with 'basis', suggesting a foundation or groundwork.
underlying justification for
Substitutes 'rationale' with 'justification', which focuses on defending or legitimizing an action or belief.
core reasoning behind
Uses 'reasoning' instead of 'rationale', and adds 'behind' for emphasis.
primary motivation for
Replaces 'rationale' with 'motivation', highlighting the driving force or incentive.
fundamental explanation for
Changes 'rationale' to 'explanation', focusing on making something understandable.
root cause of
Focuses on the origin or primary cause of something.
driving force behind
Highlights the impetus or energy that propels something.
central premise of
Emphasizes the underlying assumption or proposition.
chief determinant of
Focuses on the main factor that decides or controls an outcome.
FAQs
What is the difference between "underlying rationale for" and "reason for"?
"Underlying rationale for" implies a deeper, more fundamental justification. The "reason for" something can be a more immediate or superficial cause, while the rationale digs into the core logic or principles behind it.
How can I use "underlying rationale for" in a sentence?
Use "underlying rationale for" to introduce a core justification or principle. For example, "The "underlying rationale for" the policy change is to improve efficiency".
What are some alternatives to "underlying rationale for"?
Alternatives include "underlying reason for", "underlying basis for", or "primary motivation for", depending on the specific nuance you want to convey.
Is "underlying rationale for" formal or informal?
"Underlying rationale for" is generally considered a formal expression, suitable for academic, professional, or official contexts. Simpler phrases like "reason for" are more appropriate for informal settings.
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