alarming Synonyms

minatory staggering startling stunning stupefying surprising terrible terrifying threatening traumatic trepid troubling sinister signaling ominous overwhelming parlous periculous petrifying problematic railroading redoubtable rose-pink scary shocking unutterable upsetting wondrous mind-blowing mind-boggling nerve-racking nerve-wracking spooky heart-breaking eye-opening eye-popping psychedelic shuddery soft boiled mind-altering terrorization worrisome worrying worryingly arm-twisting awe-inspiring creepy-crawly revelatory bloodcurdling hair-raising