From Longman Dictionary of Contemporary Englishbloodcurdlingblood‧cur‧dling /ˈblʌdˌkɜːdlɪŋ $ -ɜːr-/ adjective FRIGHTENEDextremely frightening a bloodcurdling scream
Examples from the Corpus
bloodcurdling• Now they were bloodcurdling as of an animal in intense physical pain.• We have seen the bloodcurdling letters that he has sent to electors about what may happen if Labour is returned.• Even my bloodcurdling tale of the Curse of El Jocoso had not prevailed. 