Entry 1 sense Webster, 1913 Eldritch /ĕl'-drĭch/ · El·dritch · IPA /ˈɛl.dɹɪt͡ʃ/ 01 a. Hideous; ghastly; as, an eldritch shriek or laugh. 1. Hideous; ghastly; as, an eldritch shriek or laugh.[Local, Eng.]