· pose a threat to; present a danger to; "The pollution is endangering the crops"
Synonym(s): endanger, jeopardize, jeopardise, threaten, imperil, peril
· express a threat either by an utterance or a gesture; "he menaced the bank manager with a stick"
Hypernym(s): express, show, evince
· act in a threatening manner; "A menacing person"
· 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 clouds"; "the situation became ugly"
Synonym(s): baleful, forbidding, minacious, minatory, ominous, sinister, threatening