#1 menacing s. [baleful, forbidding, minacious, minatory, ominous, sinister, threatening] threatening or foreshadowing evil or tragic developments; "a baleful look"; "forbidding thunderclouds"; "his tone became menacing"; "ominous rumblings of discontent"; "sinister storm clouds"; "a sinister smile"; "his threatening behavior"; "ugly black clo. wn
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