Meaning of “malicious” in the English Dictionary

"malicious" in British English

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uk /məˈlɪʃ.əs/ us /məˈlɪʃ.əs/

(Definition of “malicious” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"malicious" in American English

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us /məˈlɪʃ·əs/

intending to cause harm, esp. by hurting someone’s feelings or reputation:

He says she threatened him and spied on him, among other malicious activities.

(Definition of “malicious” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"malicious" in Business English

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uk /məˈlɪʃəs/ us

malicious behaviour is intended to harm other people:

The court ruled that she had not acted with malicious intent.
malicious accusations/allegations/gossip
malicious damage/destruction

INTERNET, IT malicious software or computer programs are designed to damage other people's computers and prevent them from working normally:

Recent incidents have demonstrated how easily malicious hackers are able to disrupt the operations of many large companies.
malicious programs/software

The lawsuit accused the defendant of maliciously using the logo "to cause confusion".

(Definition of “malicious” from the Cambridge Business English Dictionary © Cambridge University Press)