Synonyms and related words :
amazing, appalling, astonishing, awe-inspiring, awesome, awful, breathtaking, confounding, dire, direful, dread, dreaded, fell, formidable, ghastly, ghoulish, grim, grisly, gruesome, hideous, horrendous, horrible, horrid, horrific, horrifying, macabre, mind-boggling, miraculous, morbid, overwhelming, prodigious, redoubtable, schrecklich, shocking, spectacular, staggering, startling, stunning, stupendous, surprising, terrible, terrific, tremendous, wonderful, wondrous,