Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb threaten

3 senses of threaten

Sense 1
endanger, jeopardize, jeopardise, menace, threaten, imperil, peril -- (pose a threat to; present a danger to; "The pollution is endangering the crops")
       => exist, be -- (have an existence, be extant; "Is there a God?")

Sense 2
threaten -- (to utter intentions of injury or punishment against:"He threatened me when I tried to call the police")
       => warn -- (notify of danger, potential harm, or risk; "The director warned him that he might be fired"; "The doctor warned me about the dangers of smoking")

Sense 3
threaten -- (to be a menacing indication of something:"The clouds threaten rain"; "Danger threatens")
       => bode, portend, auspicate, prognosticate, omen, presage, betoken, foreshadow, augur, foretell, prefigure, forecast, predict -- (indicate by signs; "These signs bode bad news")

Antonyms of adj threatening

2 senses of threatening

Sense 1
baleful, forbidding, menacing, 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 clouds"; "the situation became ugly")

INDIRECT (VIA alarming) -> unalarming -- (not alarming; assuaging alarm)

Sense 2
heavy, lowering, sullen, threatening -- (darkened by clouds; "a heavy sky")

INDIRECT (VIA cloudy) -> clear -- (free from clouds or mist or haze; "on a clear day")

Similarity of adj threatening

2 senses of threatening

Sense 1
baleful, forbidding, menacing, 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 clouds"; "the situation became ugly")
       => alarming (vs. unalarming) -- (frightening because of an awareness of danger)

Sense 2
heavy, lowering, sullen, threatening -- (darkened by clouds; "a heavy sky")
       => cloudy (vs. clear) -- (full of or covered with clouds; "cloudy skies")

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