盛せい世せいせいせいMeanings1noungolden age; age of prosperityrare termRare literary term for a flourishing historical period or idealized era of peace and prosperity.歴れき史し書しょには、その王おう朝ちょうの盛せい世せいが詳くわしく記しるされている。The history book describes the golden age of that dynasty in detail.