Threatening
Part of speech: verb
Definition: To make a threat against someone; to use threats.
Part of speech: adjective
Definition: Presenting a threat; menacing; frightening.
Example sentence: Our behavior toward each other is the strangest, most unpredictable, and most unaccountable of all the phenomena with which we are obliged to live. In all of nature, there is nothing so threatening to humanity as humanity itself.
Sullen
Part of speech: adjective
Definition: having a brooding ill temper; sulky.dismal; somber.sluggish; slow.
Example sentence: I was very depressed at a young age and felt like I didn't have agency towards that. Being 'female' meant I couldn't be that - I couldn't be angry, loud, sullen. Being sad meant I was weak.