menacing

动词 menace:

1. pose a threat to; present a danger to
   同义词：endanger, jeopardize, jeopardise, menace, threaten, imperil, peril
2. express a threat either by an utterance or a gesture
   同义词：menace
3. act in a threatening manner
   同义词：menace

形容词 menacing:

1. threatening or foreshadowing evil or tragic developments
   同义词：baleful, forbidding, minacious, minatory, ominous, sinister, threatening

1. A menacing or defiant wave or flourish.
   威胁性或蔑视性的挥动或舞动
2. Your vicious dog is menacing my cat!
   你那条恶狗对我家的猫太凶了！