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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
is successful
Grammar usage guide and real-world examplesUSAGE SUMMARY
"is successful" is a correct and usable phrase in written English.
You can use it to describe when someone has achieved something positive, either through hard work or an act of luck. For example: "After years of hard work, Joe's business venture is successful".
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(7)
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
58 human-written examples
The key to success is successful marketing.
Science
Generally, it is successful.
News & Media
"Mark Zuckerberg is successful".
News & Media
And it is successful.
News & Media
That is successful.
News & Media
Sophie's plan is successful.
News & Media
The appeal is successful.
News & Media
"So, Sharmeen is successful?
News & Media
That is, if the gambit is successful.
News & Media
And maybe the game is successful".
News & Media
Not all of the exhibition is successful.
News & Media
Expert writing Tips
Best practice
Consider using synonyms for "successful" to add variety to your writing. Words like "effective", "fruitful", or "prosperous" can provide nuanced meanings.
Common error
Avoid using "is successful" without providing specific metrics or evidence. Saying "The project is successful" without quantifying the success can weaken your argument.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is successful" primarily functions as a predicate adjective, describing the state or condition of a subject as having achieved a desired outcome or goal. Ludwig AI confirms that this usage is grammatically sound and widely accepted.
Frequent in
News & Media
43%
Science
29%
Formal & Business
14%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "is successful" is a grammatically correct and very common expression used to describe the state of achieving a desired outcome. As Ludwig AI confirms, it's widely accepted and used across various contexts, including news, science, and business. While versatile, it's important to use "is successful" with specific metrics to avoid vagueness, and to consider synonyms like "effective" or "fruitful" to add nuance to your writing. Whether you're discussing business ventures, scientific experiments, or personal achievements, understanding the proper usage of "is successful" will help you communicate clearly and effectively.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
achieves success
Focuses on the act of attaining success, often implying effort.
proves effective
Highlights the effectiveness of a method or action.
turns out well
Emphasizes the positive outcome, often unexpectedly.
works out favorably
Similar to "turns out well", but suggests a more planned or anticipated positive result.
realizes its goals
Focuses on the achievement of specific objectives.
bears fruit
Implies that effort has led to tangible and positive results.
accomplishes its purpose
Highlights fulfillment of an intended aim or goal.
reaches fruition
Suggests a process has fully developed and yielded results.
demonstrates efficacy
Focuses on the proven ability to produce the desired result.
is a triumph
Emphasizes the celebratory aspect of a significant achievement.
FAQs
How can I use "is successful" in a sentence?
You can use "is successful" to describe an entity, action, or plan that has achieved its desired outcome. For example, "The experiment "proves successful"", or "Her business "becomes successful" after a year of hard work".
What are some alternatives to "is successful"?
Alternatives to "is successful" include "proves effective", "achieves its goals", or "turns out well", depending on the specific context and nuance you want to convey.
Is it redundant to say "is very successful"?
While not strictly redundant, "is very successful" can often be strengthened by using a more precise adjective or adverb that specifies the degree of success. For example, instead of saying "The project is very successful", consider saying "The project is exceptionally successful" or "The project is a resounding success".
What is the difference between "is successful" and "succeeds"?
"Is successful" describes a state of being after success has been achieved, while "succeeds" describes the act of achieving success. For example, "The treatment "is successful"" implies the treatment has already proven to work, whereas "The treatment "succeeds"" suggests the action of the treatment being effective.
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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