Added 9 October 2026 hair-raising adjective Categories: Describing WordsObscure Words adjective ! Definition from WordNet 3.1, Princeton University. More about hair-raising at Wordnik → Where our words come from → Extremely alarming. Related Words: alarmingbloodcurdlingnightmarishfrighteninghorrificappallingchillinghairraisinghairyscaryfearful Back to today's word