Main entry: threatening, baleful, ominous, minacious, minatory, sinister, menacing, forbidding
Definition: threatening or foreshadowing evil or tragic developments
Usage: a baleful look; forbidding thunderclouds; his tone became menacing; ominous rumblings of discontent; sinister storm clouds; a sinister smile; his threatening behavior; ugly black clouds; the situation became ugly
Main entry: sinister
Definition: on or starting from the wearer's left
Usage: bar sinister
Main entry: black, sinister, dark
Definition: stemming from evil characteristics or forces; wicked or dishonorable
Usage: black deeds; a black lie; his black heart has concocted yet another black deed; Darth Vader of the dark side; a dark purpose; dark undercurrents of ethnic hostility; the scheme of some sinister intelligence bent on punishing him-Thomas Hardy