[{"Bold_text": "adjective", "List Items": ["threatening or portending evil, harm, or trouble; ominous:a sinister remark.Synonyms: portentous , inauspicious Antonyms: benign", "bad, evil, base, or wicked; fell:his sinister purposes.", "unfortunate; disastrous; unfavorable:a sinister accident.Synonyms: unlucky Antonyms: favorable", "of or on the left side; left.", "Heraldry.noting the side of an escutcheon or achievement of arms that is to the left of the bearer ( dexter )."]}]