Main entry: deadly
Definition: (of a disease) having a rapid course and violent effect
Main entry: mortal, deadly, deathly
Definition: causing or capable of causing death
Usage: a fatal accident; a deadly enemy; mortal combat; a mortal illness
Definition: of an instrument of certain death
Usage: deadly poisons; lethal weapon; a lethal injection
Main entry: pernicious, pestilent, deadly, baneful
Definition: exceedingly harmful
Definition: involving loss of divine grace or spiritual death
Usage: the seven deadly sins
Main entry: deadly, venomous, virulent
Definition: extremely poisonous or injurious; producing venom
Usage: venomous snakes; a virulent insect bite
Main entry: deucedly, devilishly, deadly, insanely, madly
Definition: (used as intensives) extremely
Usage: she was madly in love; deadly dull; deadly earnest; deucedly clever; insanely jealous
Main entry: deadly, lifelessly
Definition: as if dead