Gotterdammerung got·ter·dam·merung US/ˈɡɑtɜrˌdæmɜrʌŋ/ uncommon noun 1. myth about the ultimate destruction of the gods in a battle with evil SynonymsRagnarokTwilight of the Gods Related words Broader terms myth WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.