What is the opposite of harmless?

Need antonyms for harmless? Here's a list of opposite words from our thesaurus that you can use instead.

Adjective
Opposite of not able or likely to cause harm
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Adjective
Opposite of unlikely to annoy or worry people
Adjective
Opposite of inoffensive in nature
“Feel free to raise any topics you wish to discuss, regardless of how provocative they may be.”
Adjective
Opposite of not exciting, adventurous, or controversial
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