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
is completely functional
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is completely functional" is correct and usable in written English.
You can use it to describe something that operates effectively or as intended without any issues. Example: "The new software update is completely functional, and users can now enjoy a smoother experience."
✓ Grammatically correct
News & Media
Science
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
6 human-written examples
Therefore, when Greg claims that he is "completely functional" under the influence of cannabis, it's likely a sincere statement.
News & Media
"My zoetrope is completely functional AND nomable[sic], with all components made from real pie dough and food coloring," the creator brags charmingly in the video description.
News & Media
Now, the server is completely functional.
Science
The protein is completely functional in totally relieving phleomycin hypersensitivity in blm10 Δ and blm10 Δ/ blm10 Δ mutant cells.
Science
A striking difference between in situ gene displacement and other types of horizontal gene transfer events is that the former leaves intact the operon structure, so that, the operon is completely functional.
Science
We also demonstrate that Rubisco LSU protein derived solely from the fusion protein construct is completely functional, as evidenced by normal photosynthesis in transformants where the endogenous rbcL gene has been eliminated.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
Most of these are completely functional documents that perform their function and nearly immediately find themsevles flung in the virtual purgatory of Gmail's bin, waiting 30 agonising days to vanish into the ether forever.
News & Media
These works are completely functional and stable.
News & Media
Waiting until the market is certain to be completely functional "would ultimately be healthier," he said.
News & Media
"With staging, it doesn't necessarily have to be completely functional," she said.
News & Media
"The philosophy was to create something that was completely functional, economically practical and environmentally sensitive," said Bob Ratliffe, the executive director of OneWorld.
News & Media
Expert writing Tips
Best practice
Use "is completely functional" to clearly state that something is working as intended, without any limitations or defects. This is useful when confirming the status of equipment, software, or processes.
Common error
Avoid using "is completely functional" when describing something with minor issues. The phrase implies perfect working order; if there are known limitations, use more specific language.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is completely functional" serves as a descriptive adjective phrase. It's used to attribute a state of full and effective operation to a subject. According to Ludwig AI, the phrase is correct and usable in written English.
Frequent in
Science
42%
News & Media
42%
Formal & Business
16%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "is completely functional" is a descriptive adjective phrase used to indicate that something operates effectively and without any issues. Ludwig AI confirms its correctness and usability in English writing. It appears in diverse contexts, including science, news, and business, with a neutral to formal tone. When using this phrase, ensure that it accurately reflects the state of full operability to avoid overstatement. Alternatives such as "is fully operational" or "is entirely effective" can be considered based on the desired nuance.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is fully operational
This alternative emphasizes the operational aspect, suggesting readiness and active use.
is in perfect working order
This phrase highlights the condition and state of being functional, implying a lack of defects.
is entirely effective
This focuses on the effectiveness and success in achieving its intended purpose.
is working flawlessly
This emphasizes the absence of any issues or problems in its functionality.
is completely up and running
This suggests a system or process has been successfully started and is now active.
is functioning properly
This focuses on whether the functionality adheres to specific norms.
is serviceable
This emphasizes the ability to provide a service or perform a job satisfactorily.
is ready for use
This directly highlights preparedness.
is fit for purpose
This emphasizes the suitability and adequacy for a particular purpose or task.
is good to go
This is an informal phrase indicating readiness and approval for use.
FAQs
How can I use "is completely functional" in a sentence?
You can use "is completely functional" to describe something that operates effectively and as intended without any issues. For example, "The new software update "is completely functional", and users can now enjoy a smoother experience."
What are some alternatives to "is completely functional"?
You can use alternatives like "is fully operational", "is entirely effective", or "is in perfect working order" depending on the context.
When is it appropriate to use "is completely functional"?
It's appropriate to use "is completely functional" when you want to emphasize that something is working exactly as it should be, without any known problems or limitations. It conveys a sense of reliability and readiness.
What is the difference between "is completely functional" and "is functional"?
"Is functional" implies that something is working to some degree, while "is completely functional" emphasizes that it's working perfectly, without any issues. The addition of "completely" adds a stronger affirmation of full operability.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested