• appalling, awful, daunting, dreadful, fearsome, formidable, frightful, grim, gruesome, redoubtable, scary, startling, unearthly
• atrociously, dauntingly, dreadfully, startlingly
• to frighten away, to frighten off, to scare off
• to afear, to aghast, to alarm, to cow, to daunt, to dread, to fray, to fright, to frighten, to haze, to scare, to shit-scare, to start, to startle, to terrify
• pauperism increased at a fearful rate
• to shock sy into telling the truth