Synonyms and related words :
abusive, alarming, awing, bludgeoning, blustering, browbeating, bulldozing, bullying, chilling, comminatory, daunting, denunciatory, deterrent, deterring, disconcerting, discouraging, disheartening, dismaying, disquieting, fearful, fearsome, foreboding, frightening, frightful, hectoring, imminent, intimidating, lowering, menacing, minacious, minatory, ominous, overawing, scaring, scary, startling, terroristic, terrorizing, threatening, threatful