Synonyms for deadly

Synonyms for (adjective) deadly

Synonyms: deadly

Definition: (of a disease) having a rapid course and violent effect

Similar words: virulent

Definition: infectious; having the ability to cause disease


Synonyms: mortal, deadly, deathly

Definition: causing or capable of causing death

Usage: a fatal accident; a deadly enemy; mortal combat; a mortal illness

Similar words: fatal

Definition: bringing death


Synonyms: deadly, lethal

Definition: of an instrument of certain death

Usage: deadly poisons; lethal weapon; a lethal injection

Similar words: fatal

Definition: bringing death


Synonyms: pernicious, pestilent, deadly, baneful

Definition: exceedingly harmful

Similar words: noxious

Definition: injurious to physical or mental health

Usage: noxious chemical wastes; noxious ideas


Synonyms: deadly, mortal

Definition: involving loss of divine grace or spiritual death

Usage: the seven deadly sins

Similar words: unpardonable

Definition: not admitting of pardon

Usage: unpardonable behavior


Synonyms: deadly, venomous, virulent

Definition: extremely poisonous or injurious; producing venom

Usage: venomous snakes; a virulent insect bite

Similar words: toxic

Definition: of or relating to or caused by a toxin or poison

Usage: suffering from exposure to toxic substances