Synonyms of poisonous in English:

poisonous


See definition of poisonous

adjective

1‘a poisonous snake’

SYNONYMS
venomous, deadly
ANTONYMS

harmless

2‘a poisonous chemical’

SYNONYMS
toxic, deadly, fatal, lethal, mortal, death-dealing, virulent, noxious, environmentally unfriendly
ANTONYMS

harmless, non-toxic

3‘he shot a poisonous glance towards Rickie’

SYNONYMS
malicious, malevolent, hostile, vicious, spiteful, bitter, venomous, evil-intentioned, ill-natured, vindictive, vengeful, vitriolic, rancorous, malign, malignant, pernicious, mean, nasty, harmful, hurtful, wounding
slanderous, libellous, defamatory
informal bitchy, catty
literary malefic, maleficent
ANTONYMS

benevolent