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
zealous
Grammar usage guide and real-world examplesUSAGE SUMMARY
'zealous' is a correct and usable word in written English.
It is an adjective meaning eager, passionate, and enthusiastic. Example sentence: He was so zealous in his efforts to protect the environment that he was an inspiration to all.
✓ Grammatically correct
News & Media
Formal & Business
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
52 human-written examples
It seems the BBC was being a trifle zealous on Thursday and this morning – worrying that editors would subvert the rules by impishly inserting Olympic coverage from the Velodrome into items about the GDP figures.
News & Media
4. Knocking wood I am a zealous knocker of wood.
News & Media
Zealous pro-separatist comments in broken English claiming to be from western counties are very common, and there's a list of tropes we've learnt to look out for.
News & Media
Mentioning some of his weaker characteristics, including compulsive womanising, unimpressive aviation skills, childishness and egoism, often causes a rumpus during public debates where Saint-Ex fans are as zealous as religious fundamentalists.
News & Media
Despite the latest findings of continued police impunity, a Reuters investigation last year raised the possibility that the new authorities have occasionally been too zealous in prosecuting former officers, finding "serious flaws" in the case against a riot police commander accused of ordering the shooting protestors.
News & Media
The country's zealous embrace of free-marketry has fuelled solid growth of 4-5% a year.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
8 human-written examples
But an over-zealous shop assistant apparently refused to the request for fear of violating his namesake's copyright.
News & Media
Presumably it's the work of an over-zealous Ron Paul supporter.
News & Media
Referring to "over-zealous behaviour", he said: "It's not for people within the parliamentary party to decide whether there is a contest or not".
News & Media
Unlike the SEC, which is examining industry-wide behaviour, the NASD is (as usual) putting its energies into catching one firm, after which, precedent established, it can go after the others.Some at CSFB say that the bank is a victim of over-zealous regulators, spurred on by competition between the NASD and the SEC.
News & Media
And some of their abductors may have been over-zealous, rather than corrupt, cops.
News & Media
Expert writing Tips
Best practice
Use "zealous" to describe someone who is not just enthusiastic, but also actively and intensely dedicated to a cause or belief. It's stronger than "enthusiastic" and implies a deep commitment.
Common error
Avoid using "zealous" in contexts where simple enthusiasm is meant. The word carries a connotation of fervor that can seem inappropriate or excessive if not genuinely warranted. Consider alternatives like "enthusiastic" or "eager" for less intense situations.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "zealous" is as an adjective. It modifies nouns to describe someone or something as being full of zeal, fervor, or intense enthusiasm. This aligns with Ludwig's examples showcasing its descriptive use.
Frequent in
News & Media
68%
Formal & Business
16%
Science
16%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "zealous" is a grammatically correct and very common adjective used to describe intense enthusiasm and dedication. Ludwig AI confirms its appropriateness in various contexts. It's most frequently found in News & Media and Formal & Business writing, as illustrated by the numerous examples. While similar to words like "ardent" and "passionate", it carries a unique connotation of fervent commitment. Remember to use "zealous" when you want to emphasize a particularly strong dedication, and avoid overusing it in neutral situations where simple enthusiasm is sufficient.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
ardent
Implies warmth and intensity of feeling; often used in romantic or idealistic contexts.
fervent
Suggests a passionate and sincere intensity, often in a religious or emotional context.
passionate
Emphasizes strong emotion and enthusiasm, applicable to a wide range of subjects.
enthusiastic
Highlights lively and cheerful interest, often implying excitement and optimism.
avid
Indicates a keen interest and dedication, often associated with hobbies or pursuits.
eager
Suggests a readiness and anticipation, implying a desire to do or experience something.
fanatical
Conveys extreme enthusiasm to the point of being obsessive or irrational.
dedicated
Implies commitment and devotion to a cause or task.
intense
Highlights the depth and strength of feeling or effort.
gung-ho
Informal term suggesting excessive enthusiasm and eagerness, sometimes perceived as naive.
FAQs
How to use "zealous" in a sentence?
You can use "zealous" to describe someone who is extremely enthusiastic or passionate about something. For example, "He was a zealous advocate for environmental protection."
What can I say instead of "zealous"?
You can use alternatives like "ardent", "fervent", or "passionate" depending on the specific nuance you want to convey.
Which is correct, "zealous" or "jealous"?
"Zealous" means enthusiastic or passionate, while "jealous" means envious or suspicious. They have completely different meanings and should not be confused.
What's the difference between "zealous" and "enthusiastic"?
"Zealous" implies a more intense and fervent passion than "enthusiastic". While both describe positive feelings, "zealous" suggests a deeper commitment and dedication.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested