盛者
also: じょうしゃ · しょうしゃ · せいしゃ · せいじゃ
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Meanings
1
prosperous person; powerful person
Refers to a person who is flourishing, influential, or at the height of their power. Often used in literary or historical contexts, such as the famous opening of the Heike Monogatari: 盛者必衰 (the prosperous must decline).
As the proverb 'the prosperous must decline' says, his power did not last long.
Looking back at history, even those called prosperous people eventually fell.