Similar word to alarming:

dismay, alarm, appal, appall, horrify,frighten, fright, scare, affright,warn,appalling, dismaying,atrocious, frightful, horrifying, horrible, ugly,awful, dire, direful, dread(prenominal), dreaded, dreadful, fearful,fearsome, frightening, horrendous, horrific, terrible,baleful, forbidding, menacing, minacious, minatory, ominous, sinister,threatening,bloodcurdling, hair-raising, nightmarish,chilling, scarey, scary, shivery, shuddery,creepy, creepy-crawly,formidable, redoubtable, unnerving,ghastly, grim, grisly, gruesome, macabre, sick,hairy,petrifying,stupefying,terrific, terrifying