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
that are fully functional
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that are fully functional" is correct and usable in written English.
You can use it to describe objects, systems, or processes that are operating as intended without any issues. Example: "The software updates have been completed, and all features that are fully functional are now available to users."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(3)
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
7 human-written examples
Among the sites that are fully functional is one on biodiversity in Hawaii, http://rathbun.si.edu/botany/pacificislandbiodiversity/hawaiianflora/index.htm.htm
News & Media
Using a combination of synthetic polymers and ECM proteins, within minutes, we can fabricate biocompatible heart valves that are fully functional upon transplantation and support re-population with heart cells.
Academia
These effects are shown to be the consequence of perovskite crystalline strain accumulated during milling and of accidental FexSc doping from the medium, and cause no significant degradation of the electrical and piezoelectric properties of ceramics that are fully functional.
Science
The tiny, six-legged robots are out of MIT's CSAIL computer science lab and are made of both liquid and solid parts that are fully functional right after the printing process.
News & Media
"It is a very open field, I don't think you have teams that are fully functional and awe-inspiring, they all have a weakness in one way or another and that opens the door for Manchester City, Liverpool, Juventus and even for all their problems, Bayern.
News & Media
Typically available to people over age 55, this type of senior housing is usually apartments or town homes that are fully functional.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
In all, activation of Tor signaling via overexpression of Rheb produced an expanded synapse that was fully functional.
Science
Interestingly, a previous mutagenesis study in which a cysteine-depleted DAT was generated indicated that mutating an existing cysteine in EL3 at position 306, just downstream of the EL3-CCPGCC DAT, resulted in the expression of mature DAT protein [32] that is fully functional [33].
Science
Four percent of physicians reported having an extensive electronic records system that was fully functional; 13% reported having a basic system in place [ 3].
The FH1-FH2 constitutes constheutes the minimal core that is fully functional in terms of actin nucleation and elongation activity (reviewed in [ 1]).
Science
Water points were categorized using several definitions, but for the purposes of the constrained randomization, we considered only those that were fully functional, perennial, protected, and had unrestricted public access (defined as "optimal water source").
Science
Expert writing Tips
Best practice
When writing technical documentation, use "that are fully functional" to clearly state the expected operational capability after setup or repair.
Common error
Avoid using "that are fully functional" when simpler terms like "working" or "operational" are sufficient. Overusing complex phrases can make your writing sound unnecessarily formal or verbose.
Source & Trust
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that are fully functional" functions as an adjective phrase modifying a noun or pronoun. It describes a state of complete operational readiness or capability. Ludwig AI confirms its usability in written English.
Frequent in
Science
31%
News & Media
27%
Formal & Business
21%
Less common in
Encyclopedias
6%
Wiki
6%
Academia
3%
Ludwig's WRAP-UP
In summary, the phrase "that are fully functional" serves as an adjective phrase denoting complete operational readiness. Ludwig AI indicates the phrase is grammatically sound and suitable for various contexts, particularly in science, news, and formal communications. While alternatives like "operational" or "working properly" exist, "that are fully functional" emphasizes a comprehensive and unimpaired state. It's crucial to avoid overuse in simple contexts where simpler terms suffice. Remember to assure your audience with clarity and confidence when describing the functionality of systems or equipment.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that are completely operational
Replaces "fully functional" with "completely operational", focusing on the state of being ready for use.
that are in perfect working order
Emphasizes the ideal condition and readiness of something.
that are functioning correctly
Highlights the proper and accurate operation of something.
that are working properly
A more casual way to describe something functioning without issues.
that are up and running
Suggests that something is active and ready for immediate use.
that are ready for use
Focuses on the preparedness and availability of something.
that are in good condition
Indicates the overall state of something being well-maintained and functional.
that are serviceable
Highlights the usability and fitness for purpose of something.
that are fit for purpose
Emphasizes the suitability of something for its intended use.
that are effective
Focuses on the successful and efficient performance of something.
FAQs
How can I use "that are fully functional" in a sentence?
You can use "that are fully functional" to describe systems, equipment, or processes operating as intended. For instance, "Ensure all safety mechanisms "that are fully functional" before starting the machine."
What are some alternatives to "that are fully functional"?
Alternatives include "operational", "working properly", or "in working order", depending on the context.
Is it redundant to say "fully functional"?
While "functional" implies capability, "fully functional" emphasizes complete and unimpaired operation. The choice depends on the desired level of emphasis in your writing.
Which is better: "that are functional" or "that are fully functional"?
Both are correct, but "that are fully functional" provides a stronger assurance of complete readiness and operational status compared to simply "that are functional".
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
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested