無尽蔵むじんぞう Common Noun Noun I-adj English jmdict 1 noun (common) (futsuumeishi)nouns which may take the genitive case particle 'no' adjectival nouns or quasi-adjectives (keiyodoshi) inexhaustible supply 私達は、地球のエネルギー資源をまるで無尽蔵であるかのように使ってきた。 We have used earth's energy resources as if they were limitless.