[{"Bold_text": "adjective", "List Items": ["actively poisonous; intensely noxious:a virulent insect bite.Synonyms: venomous Antonyms: harmless", "Medicine/Medical.highly infective; malignant or deadly.", "Bacteriology.causing clinical symptoms.", "violently or spitefully hostile.", "intensely bitter, spiteful, or malicious:a virulent attack.Synonyms: acerbic , vicious"]}]