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
main important
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "main important" is not correct in standard written English.
It is redundant because "main" and "important" convey similar meanings, and typically only one should be used. Example: "The main point of the discussion is to address the budget issues."
⚠ May contain grammatical issues
Science
News & Media
Formal & Business
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
45 human-written examples
The main important contributions are summarized as follows: 1.
In conclusion, land use type was the main important factor influencing SOC concentration in Wangmaogou Watershed.
Science
There are two main important inequalities which characterise convex functions, namely Jensen's and Hermite-Hadamard's inequalities.
Topological naming mechanism is one of the main important technologies to fulfill this task.
Science
The main important steps which are worth to be analyzed prior to any on-line implementation are presented and discussed.
Science
Examples of the multiresolution implementations illustrate that the main important features of the traditional multiresolution are also satisfied.
Human-verified similar examples from authoritative sources
Similar Expressions
15 human-written examples
The research team identified the main categories important for implementation (e.g., recruitment, participant adherence, participant attitudes, implementation successes, difficulties and facilitators) and extracted the relevant qualitative data.
Science
Bambusa balcooa, Bambusa bambos, Bambusa tulda, Dendrocalamus hamiltonii, and Dendrocalamus strictus are the main economically important bamboo species of India (Yeasmin et al. 2015).
An overview of the evolution of probability models for over-dispersion is given looking at their origins, motivation, first main contributions, important milestones and applications.
This paper reviews three main and important vibration-to-electricity conversion mechanisms, their design theory or methods and potential applications in the literature.
CXCR3 may have its main functions important for mesangial expansion in mesangioproliferative disease.
Science
Expert writing Tips
Best practice
Avoid using "main important" in formal writing. Choose either "main" or "important" to describe something of high significance for better clarity and grammatical correctness.
Common error
Using "main important" is redundant. "Main" already implies primary importance, so adding "important" is unnecessary and weakens your writing. Opt for one word or the other.
Source & Trust
81%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "main important" functions as an adjective phrase intended to emphasize significance or prominence. However, due to its redundant nature, as indicated by Ludwig AI, it's not considered grammatically correct.
Frequent in
Science
81%
News & Media
8%
Formal & Business
4%
Less common in
Wiki
2%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
While the phrase "main important" is frequently encountered, it's considered grammatically incorrect due to redundancy. As Ludwig AI points out, using either "main" or "important" is sufficient to convey the intended meaning. For more formal or scientific writing, alternatives like "primary significance" or "key importance" offer greater clarity and precision. Remember to avoid redundancy to strengthen your writing and ensure grammatical correctness.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
primary importance
Replaces "main important" with a more grammatically sound construction, emphasizing the highest level of significance.
key importance
Substitutes "main" with "key", providing a slightly different nuance while maintaining the emphasis on significance.
major significance
Replaces both "main" and "important" with related terms, altering the phrase structure while preserving meaning.
principal significance
Uses "principal" as a synonym for "main", offering a more formal tone while retaining the core meaning.
essential importance
Emphasizes necessity by using "essential" instead of "main", highlighting the indispensable nature of something.
vital importance
Highlights the critical and life-sustaining aspect using "vital", adding a sense of urgency and necessity.
central importance
Focuses on the core or pivotal nature by using "central", emphasizing the fundamental role of something.
chief importance
Offers a slightly more formal alternative using "chief", emphasizing the top-ranking significance.
paramount importance
Implies the highest level of importance, suggesting that something surpasses all others in significance.
foremost importance
Highlights the leading or most prominent aspect using "foremost", indicating top priority.
FAQs
What's wrong with using "main important"?
The phrase "main important" is considered redundant because both words convey a similar meaning. It's more concise and grammatically sound to use either "main" or "important" on its own.
How can I rephrase a sentence that uses "main important"?
Instead of "main important", try using "primary", "key important", or "major important", depending on the specific context. These alternatives offer similar emphasis without being redundant.
Is there a difference in meaning between "main important" and "most important"?
While both phrases aim to highlight significance, "most important" is generally preferred for its clarity and grammatical correctness. "Main important" is often seen as redundant and less polished, while "most important" is a standard expression.
When is it acceptable to use "main important"?
While commonly used, "main important" is generally discouraged in formal writing due to its redundancy. In informal conversation, it may be understood, but it's advisable to use more precise and grammatically correct alternatives like "primary importance" or "chief importance" for clarity and professionalism.
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
81%
Authority and reliability
3.5/5
Expert rating
Real-world application tested