Synonyms for deadly | deadly synonyms

lethal (adjective)

Synonyms:

fatal, virulent, pernicious, pestilent, baleful.

murderous (adjective)

Synonyms:

homicidal, damning, suicidal.

mortal (noun)

Synonyms:

killer.

deathly (adjective)

mortally (adverb)

dreadful (noun)

awful (adjective)

terribly (adverb)

ruthless (adjective)

Synonyms:

merciless.

fatally, fatality, lethality, death, relentless, implacable, killing, disastrous,