Synonyms of toxic in English:

toxic


See definition of toxic

adjective

1‘they were killed by smoke and toxic gases’

SYNONYMS
poisonous, venomous, virulent, noxious, dangerous, destructive, harmful, unsafe, malignant, injurious, pestilential, pernicious, environmentally unfriendly
fatal, deadly, lethal, mortal, death-dealing
archaic baneful
ANTONYMS

non-toxic, harmless, safe