English dictionary, thesaurus, translations & etymology
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adj

harmless

HAHM-luhs
adj
1
Not capable of causing injury or harm; safe.
"The spider looks scary but it's completely harmless."
"We use a harmless chemical spray to keep the plants free of pests."
2
Not meant to hurt or offend anyone.
"It was just a harmless joke between friends."
"She gave him a harmless nickname that everyone found funny."

How to Use Harmless

Learner’s notes

In plain EnglishSomething that won't hurt you or cause damage.

Common pairings
harmless fun perfectly harmless harmless joke

Word Forms

more harmless comparative, most harmless superlative

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Fill the Gap

Can you complete this real example?

The spider looks scary but it's completely _____.

Etymology

From Old English hearmlēas, built from harm plus the suffix -less ("without"). The German cousin harmlos means the same thing.

Definitions: FreeDict original editorial