Deadly meaning

What does “deadly” mean? Definitions, examples, synonyms and opposites.

“deadly” is an adjective and adverb with 8 meanings. Its most common meaning is: causing or capable of causing death.

deadly

causing or capable of causing death
“a fatal accident”
“a deadly enemy”
Synonymsdeathly mortal
of an instrument of certain death
“deadly poisons”
“lethal weapon”
Synonymslethal
extremely poisonous or injurious; producing venom
“venomous snakes”
“a virulent insect bite”
Synonymsvenomous virulent
involving loss of divine grace or spiritual death
“the seven deadly sins”
Synonymsmortal
exceedingly harmful
Synonymsbaneful pernicious pestilent
(of a disease) having a rapid course and violent effect

as if dead
Synonymslifelessly
(used as intensives) extremely
“she was madly in love”
“deadly dull”
Synonymsmadly insanely deucedly devilishly

Source: WordNet 3.1, Princeton University