sus·​pi·​cious | \ sə-ˈspi-shəs How to pronounce suspicious (audio) \

Definition of suspicious

1 : tending to arouse suspicion : questionable suspicious characters
2 : disposed to suspect : distrustful suspicious of strangers
3 : expressing or indicative of suspicion a suspicious glance

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Other Words from suspicious

suspiciously adverb
suspiciousness noun

Examples of suspicious in a Sentence

We were instructed to report any suspicious activity in the neighborhood. The suspicious vehicle was reported to police. Suspicious characters were seen hanging around the bank. He found a suspicious lump on his back and was afraid it might be cancer. Officials are suspicious about her death. His manner made me suspicious.
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Recent Examples on the Web Anyone who sees someone on their property should note what the suspicious activity is, the time and what the person looks like. Christine Dempsey,, 5 Oct. 2021 Updated annually, such as McAfee Total Protection (from $29.99/year), anti-malware software can identify, quarantine, delete and report any suspicious activity. Marc Saltzman, USA TODAY, 2 Oct. 2021 Police responded to a call about suspicious activity involving a school bus shortly before 4:30 p.m. on Sept. 23 in the private parking lot of the Vincent Nelson apartments. Caroleina Hassett, The Arizona Republic, 30 Sep. 2021 Officers were sent to a hotel near Chandler Village Drive and Chandler Boulevard just before 7 a.m. after receiving reports of suspicious activity, police spokesman Sgt. Brieanna J. Frank, The Arizona Republic, 18 Sep. 2021 Logging can be set up to alert you of suspicious activity, and these warnings can help proactively shut down an attack. Mark Adams, Forbes, 15 Sep. 2021 Eadeh began to notice suspicious activity offline too. Timothy Mclaughlin, The Atlantic, 9 Sep. 2021 Nicole reported the suspicious activity to the Surfside Police Department on July 9 — the day of her sister’s funeral. Washington Post, 9 Sep. 2021 Investigators said Raynor, 26, was shot while checking for suspicious activity near an apartment complex in Daytona Beach. David Aaro, Fox News, 2 Sep. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'suspicious.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of suspicious

14th century, in the meaning defined at sense 1

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Time Traveler for suspicious

Time Traveler

The first known use of suspicious was in the 14th century

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Last Updated

10 Oct 2021

Cite this Entry

“Suspicious.” Dictionary, Merriam-Webster, Accessed 18 Oct. 2021.

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More Definitions for suspicious



English Language Learners Definition of suspicious

: causing a feeling that something is wrong or that someone is behaving wrongly : causing suspicion
: having or showing a feeling that something is wrong or that someone is behaving wrongly : feeling or showing suspicion


sus·​pi·​cious | \ sə-ˈspi-shəs How to pronounce suspicious (audio) \

Kids Definition of suspicious

1 : likely to arouse suspicion suspicious actions
2 : likely to distrust or be distrustful Trolls are … mighty suspicious about anything new to them.— J. R. R. Tolkien, The Hobbit
3 : showing distrust a suspicious glance

More from Merriam-Webster on suspicious

Nglish: Translation of suspicious for Spanish Speakers

Britannica English: Translation of suspicious for Arabic Speakers


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