malicious

Intending or intended to do harm.

• malice/ˈmælɪs/(n)恶意
• maliciously/məˈlɪʃəsli/(adv)恶意地

• malicious intent
• malicious software (malware)
• malicious gossip
• malicious attack

1. 1.The malicious rumors destroyed her professional reputation. (deliberately harmful)
2. 2.Malicious software can steal personal data from your computer. (harmful, tech)

• spiteful/ˈspaɪtfʊl/— wanting to hurt out of resentment
• vindictive/vɪnˈdɪktɪv/— seeking revenge
• hostile/ˈhɒstaɪl/— unfriendly, aggressive

from Latin "malitia" = badness — "malus" = bad — full of bad intent