doubtful activity

USAGE SUMMARY

The phrase "doubtful activity" is correct and usable in written English.
It can be used to describe an action or behavior that raises suspicion or uncertainty regarding its legitimacy or appropriateness. Example: "The investigation revealed several instances of doubtful activity that warranted further scrutiny."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

Even so, most economists still consider fieldwork—"learning by asking", as Mr Blinder puts it a doubtful activity, one reserved for the lowest orders, such as reporters and sociologists.Should economists get out more?

The Economist

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

Whether Van Rijn's scenario is accurate or mere wild speculation, he points to other similar instances of such doubtful activities at top museums.

Forbes

So it seems doubtful that such activities suddenly became a lot more important in recent years.

The Economist

Moreover, it is doubtful that these activities will help to meet the health needs of the economically weaker sections of society.

Health Research Policy and Systems

If AAV activity remained doubtful, the patient was excluded from the study.

Annals of Intensive Care

While the BCC resources developed during the initiative have wide applicability, the sustainability and expansion of the project's BCC activities are doubtful due to the lack of a long-term approach for health promotion in Cambodia and necessary government funds.

Unicef

But even then, "it was extremely doubtful that any of this activity had any effect at all in the real world of improving our sales by restricting piracy," he said.

The New York Times

"But he actually uses all available doubtful financial mechanisms to hide activities and fortunes in tax havens and behind trusts, far away from the IRS," the US tax authority.

Vice

In doubtful cases, an assessment of the proliferative activity according to the MIB-1 labeling index was found to improve the accuracy of the diagnosis [ 3].

BMC Cancer

4) Women are doubtful about their capacity to carry out their daily activities and their working ability itself.

Health and Quality of Life Outcomes

Given the poor activity of 5 the F93 mutants, it is doubtful that we would be able to detect further inhibition by the peptides.

eLife

Expert writing Tips

Best practice

When using "doubtful activity", ensure that the context clearly indicates the reason for doubt, such as lack of evidence, ethical concerns, or potential risks.

Common error

Avoid using "doubtful activity" without providing specific reasons or evidence to support the assertion. Always clarify the nature of the doubt to maintain credibility.

Linguistic Context

The phrase "doubtful activity" primarily functions as a noun phrase where the adjective "doubtful" modifies the noun "activity". Ludwig AI confirms its usability. It serves to characterize a specific action or pursuit as questionable or uncertain.

Expression frequency: Common

Frequent in

News & Media

35%

Science

33%

Formal & Business

32%

Less common in

Wiki

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "doubtful activity" is a grammatically sound and commonly used expression to describe actions or behaviors that are questionable or uncertain. As Ludwig AI confirms, it appears across various contexts, including news, science, and business. While alternatives like "questionable action" or "suspicious behavior" exist, "doubtful activity" maintains a neutral tone suitable for analytical discussions. When employing this phrase, ensure clarity by providing specific reasons for the doubt to avoid ambiguity. Overall, "doubtful activity" is a versatile and effective way to express skepticism in various forms of communication.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

dubious undertaking

This is very close in meaning but stresses on the uncertainty of the activity to be accomplished.

questionable action

This alternative shifts the focus slightly towards the ethical or moral implications of the activity.

suspicious behavior

This phrase emphasizes the element of distrust and potential wrongdoing associated with the activity.

dubious conduct

This alternative implies a stronger sense of impropriety or ethical concern.

uncertain practice

This phrase highlights the lack of clarity or established procedure surrounding the activity.

debatable action

Highlights the lack of agreement or consensus regarding the activity.

risky undertaking

This emphasizes potential negative outcomes or hazards associated with the activity.

controversial behavior

Implies that the activity is divisive and likely to provoke disagreement.

speculative venture

This suggests the activity is based on conjecture and lacks concrete evidence.

tenuous activity

This alternative focuses on the fragility or lack of solid foundation for the activity.

FAQs

How can I use "doubtful activity" in a sentence?

You can use "doubtful activity" to describe actions or behaviors that raise questions or concerns about their legitimacy, appropriateness, or effectiveness. For example, "The audit revealed several instances of doubtful activity requiring further investigation."

What are some alternatives to "doubtful activity"?

Depending on the context, you can use alternatives such as "questionable action", "suspicious behavior", or "dubious conduct".

Is "doubtful activity" formal or informal?

"Doubtful activity" is suitable for both formal and informal contexts, though it is often found in more serious or analytical discussions.

What makes an activity "doubtful"?

An activity becomes "doubtful" when there are reasons to suspect its validity, honesty, or potential outcomes. This could stem from a lack of evidence, ethical concerns, or perceived risks.