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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
dubious activity
Grammar usage guide and real-world examplesUSAGE SUMMARY
"dubious activity" is a correct and usable phrase in written English.
You can use it to describe behavior that is suspicious or questionable in nature. For example, "The police suspected the man of being involved in some dubious activity."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(20)
questionable activity
suspicious behavior
shady dealing
fishy practice
irregular conduct
nefarious scheme
dubious business
dubious assistance
dubious production
dubious occupation
shadowy activity
uncertain activity
dubious interest
suspicious activity
dubious support
dubious organization
objectionable activity
dubious employment
dubious service
doubtful activity
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
15 human-written examples
Dubious activity either in-play, or on side markets.
News & Media
Then, as now, banking was a morally dubious activity.
News & Media
But talking of dubious activity, what is Dark Santa?
News & Media
But the exchange also attracted a fair share of dubious activity.
News & Media
"Posthumous psychiatric diagnosis is a dubious activity," he warns, before adding, "Madness is of an age, not for all time.
News & Media
When Igor detects dubious activity, humans review the evidence and decide whether to freeze the corresponding accounts.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
Already, the private suits are revealing dubious activities.
News & Media
BuzzFeed News has revealed that Nebraska and Texas are also engaged in similar legally dubious activities.
News & Media
Regulators may have other tools to curb dubious activities, he said.
News & Media
It is wrong to commit burglary (see Watergate), and wrong to lie about, or try to conceal, dubious activities (ditto).
News & Media
Sen. McWhatshisname carelessly dropped a remark the other day that revealed the exact nature of his dubious activities.
News & Media
Expert writing Tips
Best practice
When using "dubious activity", be specific about what makes the activity questionable. Provide context to clarify the nature of the suspicion.
Common error
Avoid using "dubious activity" with vague pronouns like 'it' or 'this' without clearly establishing what "it" or "this" refers to. Always ensure the subject of the activity is clear to the reader.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "dubious activity" functions as a noun phrase where "dubious" modifies "activity", describing the nature of the action. It is used to denote actions that are questionable or suspicious. Ludwig AI confirms this through numerous examples of use.
Frequent in
News & Media
65%
Wiki
13%
Science
12%
Less common in
Formal & Business
5%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "dubious activity" is a common and grammatically sound way to describe actions that raise suspicion or doubt. As highlighted by Ludwig, it appears frequently in news and media, as well as in more general contexts. When using the phrase, clarity is key; ensure that the specific activity being questioned is well-defined. While alternatives like "questionable activity" and "suspicious behavior" exist, "dubious activity" maintains a versatile and widely understood meaning, making it a valuable term in both formal and informal communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
questionable activity
Indicates uncertainty or doubt about the legitimacy or morality of the actions.
suspicious behavior
Focuses more on the actions themselves being suspect or arousing suspicion.
shady dealing
Implies a secretive and potentially dishonest transaction or negotiation.
fishy practice
Informal term suggesting something is not quite right or trustworthy.
irregular conduct
Suggests a deviation from established rules or norms of behavior.
nefarious scheme
Highlights the wicked or criminal intent behind a plan or activity.
underhanded tactic
Emphasizes the deceptive or unfair nature of the method used.
clandestine operation
Focuses on the secretive and often illicit nature of an organized activity.
illicit affair
Often refers to secret, and forbidden romantic relationship.
dodgy dealing
Indicates possibly illegal or unethical business practice.
FAQs
How can I use "dubious activity" in a sentence?
You can use "dubious activity" to describe situations where actions are suspicious or questionable. For example, "The accountant noticed some "dubious activity" in the company's financial records".
What are some alternatives to "dubious activity"?
Alternatives include "questionable activity", "suspicious behavior", or "shady dealing depending on the context".
Is "dubious activity" formal or informal?
"Dubious activity" is suitable for both formal and informal contexts, though it's more commonly seen in news reporting and general discussions.
What kind of actions does "dubious activity" typically describe?
"Dubious activity" usually refers to actions that are questionable in terms of legality, ethics, or overall trustworthiness. It can range from minor rule-bending to more serious illegal operations.
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested