Adjective
deadly -
extremely poisonous or injurious; producing venom; "venomous snakes" ; "a virulent insect bite"
venomous ,
virulent
toxic of or relating to or caused by a toxin or poison; "suffering from exposure to toxic substances"
deadly -
causing or capable of causing death; "a fatal accident" ; "a deadly enemy" ; "mortal combat" ; "a mortal illness"
deathly ,
mortal
fatal controlled or decreed by fate; predetermined; "a fatal series of events"
deadly -
of an instrument of certain death; "deadly poisons" ; "lethal weapon" ; "a lethal injection"
lethal
fatal controlled or decreed by fate; predetermined; "a fatal series of events"
deadly -
involving loss of divine grace or spiritual death; "the seven deadly sins"
mortal
unpardonable not admitting of pardon; "unpardonable behavior"
theology ,
divinity the learned profession acquired by specialized courses in religion (usually taught at a college or seminary); "he studied theology at Oxford"
deadly -
(of a disease) having a rapid course and violent effect
virulent infectious; having the ability to cause disease
deadly -
exceedingly harmful
baneful ,
pernicious ,
pestilent
noxious injurious to physical or mental health; "noxious chemical wastes" ; "noxious ideas"
Adverb
deadly -
as if dead
lifelessly
deadly -
(used as intensives) extremely; "she was madly in love" ; "deadly dull" ; "deadly earnest" ; "deucedly clever" ; "insanely jealous"
madly ,
insanely ,
deucedly ,
devilishly