ALL meanings of sinisterly
sin·is·ter
S s - adjective sinisterly threatening or portending evil, harm, or trouble; ominous: a sinister remark. 1
- adjective sinisterly bad, evil, base, or wicked; fell: his sinister purposes. 1
- adjective sinisterly unfortunate; disastrous; unfavorable: a sinister accident. 1
- adjective sinisterly of or on the left side; left. 1
- adjective sinisterly Heraldry. noting the side of an escutcheon or achievement of arms that is to the left of the bearer (opposed to dexter). 1