1
: free from harm, liability, or loss
2
: lacking capacity or intent to injure : innocuous
a harmless joke
harmlessly
adverb
harmlessness
noun
Examples of harmless in a Sentence
His ideas seem harmless enough.
We're just having a bit of harmless fun.
It was just a harmless joke.
Recent Examples on the Web
The bacteria is known to be harmless, but likely means other pathogens are present.
—
Rachel Flynn, People.com, 10 Apr. 2025
On the surface, YouTubers’ content looks harmless—a teen girl in her bedroom making squishies or kids unboxing their latest hauls from popular stores, sharing unfiltered opinions.
—Lauren Brown West-Rosenthal, Parents, 9 Apr. 2025
Information that seems harmless, like your location, job title or birthday, can be used by cybercriminals to impersonate you or guess your login credentials.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 9 Apr. 2025
Their drama is considered campy, entertaining, harmless.
—Shelby Stewart, Essence, 8 Apr. 2025
See All Example Sentences for harmless
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Rachel Flynn, People.com, 10 Apr. 2025
On the surface, YouTubers’ content looks harmless—a teen girl in her bedroom making squishies or kids unboxing their latest hauls from popular stores, sharing unfiltered opinions.
—Lauren Brown West-Rosenthal, Parents, 9 Apr. 2025
Information that seems harmless, like your location, job title or birthday, can be used by cybercriminals to impersonate you or guess your login credentials.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 9 Apr. 2025
Their drama is considered campy, entertaining, harmless.
—Shelby Stewart, Essence, 8 Apr. 2025
See All Example Sentences for harmless
Cite this Entry
“Harmless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/harmless. Accessed 17 Apr. 2025.
Copy CitationKids Definition
harmless
adjective
harm·less
ˈhärm-ləs 
1
: free from harm
2
: unable to harm
harmlessly
adverb
harmlessness
noun
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