Causing or capable of causing death:
Deadly or harmful to both sides of a group involved in a conflict, as a civil war; mutually destructive or harmful
Harmful often in a subtle or unexpected way (as for example deleterious effects, deleterious to health).
Taking bribes; venal
Suggestive of death:
Harmful or destructive:
Growing or spreading rapidly to the point of harm.
(Computing) Causing a sudden end to the running of a program.
Designed or tending to disprove or discredit:
Characterized by or indicating future misfortune; ominous:
Extremely wicked or cruel.
(Informal) Very unpleasant or unappealing:
Having, showing, or caused by malice; spiteful; intentionally mischievous or harmful
Tending to cause death or serious injury; deadly:
The definition of spiteful is someone who purposely does harm to another.
Disposed to violent or destructive behavior:
Morally bad or wrong; acting or done with evil intent; depraved
Not life-threatening or severe, and likely to respond to treatment, as a tumor that is not malignant.
Causing or seeking to cause no harm; not harmful; inoffensive
Malevolent is defined as someone or something that is harmful or evil.
Intending or threatening harm or ill will; malevolent:
(Slang) Hard to cope with; difficult or troublesome:
The definition of nasty is something that is very dirty, unpleasant or offensive.
In a bad mood; irritable or cranky.
Served without milk or cream:
(Archaic) harmful to morals or public order.
(Med.) Violent and rapid in its course; highly malignant
Characterized by intense ill will or spite
Extremely destructive or harmful
Causing or able to cause harm; hurtful
Find another word for malignant. In this page you can discover 58 synonyms, antonyms, idiomatic expressions, and related words for malignant, like: lethal, internecine, pestilential, deleterious, corrupt, mortal, deadly, sapping, poisonous, baneful and melanoma.