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
due mostly to
Grammar usage guide and real-world examplesUSAGE SUMMARY
"due mostly to" is a correct and usable phrase in written English.
You can use it when something specific (or a combination of factors) is the primary cause or reason for a situation, usually a negative one. For example: "The town's unemployment rate is high due mostly to the recent factory closure."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(16)
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
That's due mostly to the costs of educating their children.
News & Media
Due mostly to our confidence that we were about to witness a positive historical moment.
News & Media
The reputation of the Weary Herakles is due mostly to the strange story of its discovery.
News & Media
First, the postponement was due mostly to the predicted temperature, not actual precipitation.
News & Media
The decline is due mostly to the fact that it's packed with sugar, albeit natural sugar.
News & Media
Triploidy after intracytoplasmic sperm injection (ICSI) is due mostly to retention of the second polar body.
Science
In April, inflation topped 60% due mostly to utility price hikes.
News & Media
We did find a couple of flamboyant outliers, but this was due mostly to vintage variations.
News & Media
That fact seems to be due mostly to the social-comparison mechanism.
Encyclopedias
A coexisting absorption slope, due mostly to defects, increases but tends to saturate with ion fluence.
Although politicians and the police took credit, the crime drop was probably due mostly to the Supreme Court.
News & Media
Expert writing Tips
Best practice
For emphasis, consider front-loading the cause introduced by "due mostly to" to immediately establish the central reason in your sentence.
Common error
Avoid using "due mostly to" when multiple factors contribute significantly to a situation. If there are other factors, consider using phrases like "partly due to" or "influenced by" to reflect the shared causality.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "due mostly to" functions as a causal connector, linking an effect to its primary cause or reason. As Ludwig AI confirms, it's a correct and usable phrase for indicating the main factor contributing to a particular situation. This usage is evident in numerous examples where "due mostly to" introduces the primary reason behind a specific outcome.
Frequent in
News & Media
47%
Science
37%
Academia
11%
Less common in
Encyclopedias
1%
Wiki
1%
Formal & Business
1%
Ludwig's WRAP-UP
In summary, "due mostly to" is a prevalent and grammatically sound phrase used to indicate the primary cause or reason behind an event or situation. As Ludwig AI states, it is correct and can be used when emphasizing a main cause, particularly for negative events. The phrase appears frequently in news, scientific, and academic contexts, reflecting its versatility and broad acceptance. When using "due mostly to", it's important to ensure that the identified factor is indeed the primary cause. Consider alternatives like "mainly because of" or "primarily attributable to" for nuanced expression. Its usage is supported by authoritative sources like The New York Times and The Washington Post.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
mainly because of
A more direct and straightforward way of expressing the primary cause.
in large part due to
Emphasizes the significant contribution of the specified reason.
primarily attributable to
Emphasizes the aspect of attribution as the main reason, offering a more formal tone.
mostly on account of
Uses 'on account of' to present a reason, similar in tone to 'because of'.
largely a result of
Highlights the consequence or outcome, suggesting a substantial impact.
principally caused by
Highlights that the reason in question acted as the most important cause.
essentially stems from
Highlights the origin or root cause of a situation.
chiefly owing to
Uses 'owing to' to indicate cause, with 'chiefly' stressing the main factor.
predominantly influenced by
Indicates that the primary factor has heavily swayed or shaped the outcome.
fundamentally a product of
Indicates that the reason is the core or base cause.
FAQs
How can I use "due mostly to" in a sentence?
Use "due mostly to" to indicate the primary reason or cause of a particular situation or outcome. For instance, "The project's delay was "due mostly to" unforeseen technical challenges".
What are some alternatives to "due mostly to"?
You can use alternatives like "mainly because of", "largely a result of", or "primarily attributable to" to express a similar meaning. Each alternative offers a slightly different nuance while still conveying the primary cause. See also: "largely a result of" or "primarily attributable to".
Is "due mostly to" formal or informal?
"Due mostly to" is suitable for both formal and informal contexts. While not overly formal, it is a clear and concise way to express causality, making it appropriate for various types of writing and speech.
Can I use "due mostly to" at the beginning of a sentence?
While grammatically correct, starting a sentence with "due mostly to" can sometimes sound awkward. It's generally better to place the phrase within the sentence to improve flow and readability. For example, "The increase in sales was "due mostly to" our marketing campaign" is preferable to "Due mostly to our marketing campaign, sales increased".
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