Also found in: Dictionary, Thesaurus, Medical, Encyclopedia, Wikipedia.


Involving malice; characterized by wicked or mischievous motives or intentions.

An act done maliciously is one that is wrongful and performed willfully or intentionally, and without legal justification.


adjective acrimonious, antagonistic, brutal, cruel, demoniac, demoniacal, destructive, diabolic, diabolical, evil, evil-minded, feral, ferocious, harmful, hateful, hostile, ill-natured, invidious, malefic, maleficent, maleficial, malevolent, malevolus, malignant, merciless, ornery, pernicious, relentless, resentful, ruthless, savage, spiteful, treacherous, truculent, unfeeling, venemous, vicious, vindictive, virulent, wanton, wicked
Associated concepts: malicious mischief, malicious prosecuuion
Foreign phrases: Malitiis hominum est obviandum.The malicious designs of men must be thwarted.
See also: caustic, cold-blooded, contemptuous, cruel, felonious, harmful, invidious, libelous, malevolent, malignant, mordacious, noxious, outrageous, resentful, scathing, sinister, spiteful, vicious, vindictive, virulent, wrongful

DESERTION, MALICIOUS. The act of a husband or wife, in leaving a consort, without just cause, for the purpose of causing a perpetual separation. Vide Abandonment, malicious.

MALICIOUS. With bad, and unlawful motives; wicked.

References in periodicals archive ?
As the amount of malicious files which we encounter every day exceeds hundreds of thousands and keeps growing, we at Kaspersky Lab have been automating a number of virus analysis tasks.
Mr Hooker continued: "Where student properties are concerned, protecting against malicious damage is even more important, and not just because the perception of students is not always positive, but because their leases are often shorter term and their properties tend to remain empty over holiday periods putting them at greater risk.
Scammers often take advantage of the trust relationship to fool users into clicking malicious links.
When a common sensor is compromised, it becomes a malicious node in the WSN.
For instance, the attackers with super user permission can delete the system to disable all functions of the smartphone, or install undeletable malicious applications.
The new technology also removes or quarantines malicious code, interrupts malicious processes and restores the system files from a trusted backup.
with home invasion; and malicious injury to real and personal property.
Over 80% of the malicious code detected by Finjan was obfuscated, making it virtually invisible to pattern-matching/signature-based methods in use by anti-virus products.
There is no disincentive for anyone who makes malicious complaint or spreads slander and this is the reason more and more malicious claims are made.
On the second point, "willful and malicious," the insured was less successful.
Antivirus software is critical in defending against computer viruses and other malicious programs (often called "malware").
Symantec has a number of safeguards built into our virus lab security architecture to keep malicious code isolated, including air-gaping of this lab from the rest of the engineering networks.