The Oxford Thesaurus An A-Z Dictionary of Synonyms - venomousadj.

1) poisonous, deadly, toxic, dangerous, life-threatening, lethal: There are few venomous snakes in the British Isles. 2) poisonous, virulent, malicious, malevolent, malign, malignant, savage, baleful, envenomed, hostile, antagonistic, spiteful, splenetic, acerbic, rancorous, bitter, embittered, mean, vicious: That venomous little man caused me to lose my job.