Synonyms to disheartening

alarming, awing, bad, chilling, critical, dangerous, dangersome, daunting, deterrent, deterring, disconcerting, discouraging, dismaying, disquieting, explosive, fear-inspiring, fearful, fearsome, fraught with danger, frightening, frightful, jeopardous, menacing, overawing, parlous, periculous, perilous, scaring, scary, serious, startling, threatening, ugly, disappointing, displeasing, dissatisfactory, falling short, inadequate, incommensurate, inferior, insufficient, not good enough, pathetic, poor, sad, second best, second-rate, sorry, tantalizing, teasing, unfulfilling, ungratifying, unsatisfactory, unsatisfying, funereal, Acheronian, Acherontic, Cimmerian, Stygian, black, blackish, bleak, cinerary, clouded, cloudy, dark, dark and gloomy, dark-colored, darkish, darksome, depressing, depressive, dirgelike, dismal, doleful, drear, drearisome, dreary, dusk, dusky, epitaphic, exequial, feral, funebrial, funebrious, funebrous, funeral, funerary, gloomful, glooming, gloomy, grave, gray, grievous, grim, ill-lighted, ill-lit, lowering, lugubri