ominous Definition

menacing, alarming, sinister, baleful, inauspicious, ugly, minatory, unpropitious, threatening, forbidding, ill, minacious, unsettling, grim, eerie, troubling, bleak, worrisome, disquieting, frightening, dire, disturbing, worrying, scary, terrifying, dreadful, dismal, horrifying, spooky, daunting, troublesome, appalling, disastrous, creepy, distressing, gruesome, terrible, pernicious, horrendous, horrific, dark, formidable, horrible, serious, unholy, bad, grave, unfortunate, threat, severe, fateful, nefarious, heavy, adverse, malign, harmful, tremendous, ill-fated, portentous, gloomy, apocalyptic, somber, mournful, sombre, ghostly, strange, fearsome, ghastly, cryptic, frightful, nightmarish, uneasy, funereal, dreary, evocative, murky, chilling, unnerving, unmistakable, bodeful, disconcerting, sobering, eerisome, startling, stark, unmistakeable, panomphean, haunting, tenebrous, dispiriting, prophetic, preominate, intriguing, unsubtle, incongruous, infaust, sombrous, foreholding, premonitory, emphatic,