いざなぎ景けい気きいざなぎけいきじ字FuriganaMeanings1nounIzanagi Boomhistorical termHistorical term for the economic boom in Japan from 1965 to 1970, named after the deity Izanagi. Used in discussions of post-war economic history.いざなぎ景けい気きは、戦せん後ご最さい長ちょうの好こう景けい気きとして知しられている。The Izanagi Boom is known as the longest period of economic prosperity in post-war Japan.いざなぎ景けい気きの時じ期きには、日本にほんのGDPが急きゅう成せい長ちょうした。During the Izanagi Boom, Japan's GDP grew rapidly.