unusual activity

USAGE SUMMARY

'unusual activity' is correct and usable in written English.
You can use it to refer to any activity that is not ordinary, usual, or expected. For example: The police noticed unusual activity in the alley and began to investigate.

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Yes? "Please explain the unusual activity: Georgia?

The New Yorker

They also kept detailed "incident reports" of unusual activity.

The New York Times

There was no sign of unusual activity at the house.

The New York Times

4. Always be alert and report any unusual activity.

The New Yorker

When unusual activity is detected, the Darktrace software alerts human cybersecurity experts.

The Guardian - Tech

On an ordinary day, Mr. Johnson said, those maps are blissfully blank, showing no unusual activity.

The New York Times - Tech

TalkTalk's website was taken offline "as soon as they noticed unusual activity".

The Guardian - Opinion

And make sure that your Alert Preference is set for "Show an alert for unusual activity".

The Guardian - Tech

"If there's any really unusual activity, the C.D.C. can mobilize people to come back.

The New Yorker

The software runs in the background until it detects unusual activity on the keyboard.

The New York Times - Tech

Mr. Moore said the training would help drivers spot unusual activity.

The New York Times

Expert writing Tips

Best practice

When reporting "unusual activity", provide specific details about what makes the activity unusual to avoid ambiguity.

Common error

Avoid using "unusual activity" as a vague placeholder. Always clarify what specific actions or behaviors constitute the unusual activity to maintain clarity and avoid misinterpretations.

Linguistic Context

The phrase "unusual activity" functions as a noun phrase where the adjective "unusual" modifies the noun "activity". It commonly serves as the object of a verb or preposition, as evidenced by Ludwig's examples. It is used to identify actions or occurrences that deviate from what is considered normal or expected.

Expression frequency: Very common

Frequent in

News & Media

68%

Science

18%

Academia

8%

Less common in

Formal & Business

4%

Encyclopedias

1%

Wiki

1%

Ludwig's WRAP-UP

In summary, "unusual activity" is a grammatically correct and frequently used phrase to describe actions or events that deviate from the norm. As Ludwig AI confirms, it is appropriate for use in a variety of contexts, but particularly prevalent in news and media, science, and academic writing. When using the phrase, ensure you provide enough context to clarify what constitutes the unusual aspect of the activity. Related phrases include "abnormal behavior" and "anomalous event". While its register is generally neutral, providing specific details is crucial for clarity and preventing misinterpretations. By being specific and contextual, writers can effectively communicate the nature and importance of the reported activity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

abnormal behavior

Focuses specifically on behavior rather than a broader range of activities.

anomalous event

Emphasizes the unexpected and irregular nature of an event.

peculiar incident

Highlights the strangeness and distinctiveness of an occurrence.

odd occurrence

Underscores the bizarreness and infrequency of an event.

uncharacteristic conduct

Specifically refers to behavior that is not typical or expected.

atypical happening

Stresses the divergence from the usual course of events.

strange phenomenon

Draws attention to an inexplicable or remarkable event.

irregular pattern

Highlights a deviation from a predictable or consistent arrangement.

deviant action

Focuses on actions that stray from accepted norms or standards.

uncommon event

Emphasizes the rarity and infrequency of an occurrence.

FAQs

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

You can use "unusual activity" to describe something that is not normal or expected. For example, "The security guard reported "unusual activity" near the warehouse after midnight."

What's a less common way to say "unusual activity"?

Alternatives include "abnormal behavior", "anomalous event", or "peculiar incident", depending on the context.

In what scenarios would I report "unusual activity"?

Reporting "unusual activity" is appropriate in security contexts, financial monitoring (e.g., flagging credit card transactions), or scientific observations where unexpected patterns emerge.

What's the difference between "unusual activity" and "suspicious behavior"?

"Unusual activity" simply denotes something out of the ordinary, while "suspicious behavior" suggests a potential threat or wrongdoing. The latter carries a stronger implication of malicious intent.