threaten

Synonyms: abuse admonish augur blackmail bluster browbeat bully caution comminate cow enforce flex muscles forebode forewarn fulminate growl intimidate look daggers make threat menace portend presage pressurize push around scare scowl shake fist at snarl spook terrorize torment walk heavy

Antonyms: alleviate help protect relieve

Synonyms: advance approach be dangerous be gathering be imminent be in the air be in the offing be on the horizon brewing come on forebode foreshadow frighten hang over impend imperil jeopardize loom overhang portend presage put at risk put in jeopardy warn

Antonyms: guard protect save