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
mysterious topic
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "mysterious topic" is correct and usable in written English.
You can use it when referring to a subject or theme that is enigmatic or not well understood. Example: "The lecture focused on a mysterious topic that intrigued all the attendees, leaving them eager to learn more."
✓ Grammatically correct
News & Media
Science
Alternative expressions(4)
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
2 human-written examples
A great example of this occurred in last night's show, which addressed the mysterious topic of Scottish independence by pitching a single advocate against an array of opponents that included George Galloway, and noted Scottish politician Nigel Farage.
News & Media
Various imaging studies tried to clarify and to uncover the neuronal basis of our self, indicating an increased interest in this mysterious topic.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Because it was so mysterious, the topic of money caused a lot of anxiety for me as a child and teenager.
News & Media
I was always taught if you don't know anything about a certain topic, either be quiet, or ask questions to learn more about said mysterious subject.
News & Media
Today, the five senses are considered such an elementary truth that it is sometimes used as a point of consensus before writers embark on more mysterious or contentious topics.
News & Media
George Johnson's "Shortcut Through Time" addresses one of the most excruciatingly complex, mysterious and deeply fascinating topics in modern science, namely quantum computing: the manipulation of quantum states to perform computations far faster than is possible on any conventional computer.
News & Media
She certainly wouldn't be at The Wooden Barn, a therapeutic boarding school in rural Vermont, living with a weird roommate, and signed up for an exclusive, mysterious class called Special Topics in English.
News & Media
These mysteries remain mysterious.
News & Media
Why is this topic fascinating and mysterious?
News & Media
Most of "Inishmaan" is devoted to the passing, amplification and dissection of rumors, which include such hot topics as the mysterious simultaneous disappearances of a goose and a cat.
News & Media
"What terrifying truth warranted a cover-up at the cost of the lives of all these people?" asked the show's host, Adam Kadmon, who plays a mysterious masked vigilante who investigates topics like Ustica, underskin microchip implants and, more recently, Michael Jackson's prophecy about Sept. 11, and favors the French missile theory.
News & Media
Expert writing Tips
Best practice
When introducing a "mysterious topic", consider starting with a hook that emphasizes the unknown or intriguing aspects to immediately capture the reader's attention.
Common error
Avoid overusing "mysterious" to describe topics. Instead, use more specific adjectives that reflect the particular nature of the mystery, such as 'enigmatic', 'unfathomable', or 'obscure'. This will make your writing more precise and engaging.
Source & Trust
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "mysterious topic" functions as a noun phrase, where "mysterious" is an adjective modifying the noun "topic". It typically serves to describe a subject matter that is unknown, puzzling, or difficult to understand. Ludwig examples show that it's used when introducing discussions or studies around subjects that have an element of intrigue.
Frequent in
News & Media
50%
Science
50%
Encyclopedias
0%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "mysterious topic" is a grammatically correct and understandable way to describe a subject that is not well known. According to Ludwig, while it appears less frequently, its purpose is to characterize the topic with the unknown. The phrase is generally neutral in register, fitting well in both news and scientific contexts, though it can be useful in many contexts. When using this phrase, aim to capture the reader's attention by emphasizing its intriguing characteristics and consider more specific adjectives to enhance the accuracy of the description.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
enigmatic subject
Replaces "topic" with "subject", emphasizing the perplexing nature of the theme.
puzzling theme
Substitutes "topic" with "theme", highlighting the perplexing or confusing quality of the subject.
unexplained phenomenon
Shifts focus to an event or occurrence that lacks a clear explanation, suggesting a specific type of mysterious topic.
unfathomable issue
Replaces "topic" with "issue", conveying the idea that the topic is difficult or impossible to fully understand.
obscure matter
Uses "matter" instead of "topic", implying the subject is hidden or not well-known.
arcane subject
The word "arcane" suggests that the subject is known or understood by very few.
secret theme
Suggests a theme hidden or not generally known.
intriguing question
Focuses on the aspect of curiosity and interest generated by the topic.
perplexing question
Highlights the confusing nature of the topic.
unsolved mystery
Indicates that the topic is a puzzle that has not been resolved.
FAQs
How can I use "mysterious topic" in a sentence?
You can use "mysterious topic" to refer to a subject that is not fully understood or is intriguing. For instance, "The professor's lecture explored a "mysterious topic" in quantum physics." It's important to ensure the context clearly establishes the element of mystery.
What are some alternatives to "mysterious topic"?
Alternatives to "mysterious topic" include "enigmatic subject", "puzzling theme", or "obscure matter". The best choice depends on the specific nuance you want to convey.
Is it better to say "mysterious topic" or "enigmatic topic"?
Both "mysterious topic" and "enigmatic topic" are grammatically correct. "Enigmatic topic" might suggest a deeper, more intellectual kind of mystery, while "mysterious topic" is more general.
What makes a topic "mysterious"?
A topic can be considered "mysterious" if it involves elements that are unknown, unexplained, or difficult to understand. This could be due to a lack of information, conflicting evidence, or inherent complexity.
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
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested