长盛不衰 chángshèngbùshuāi ever-prosperous Origin Definitions Defs Strokes Stroke Words Sentences Sents 长 長 cháng adjective long long in space or time; lasting盛 shèng adjectiveverb flourishing Flourishing, prosperous, or vigorous; magnificent and grand不衰 bùshuāi unfailing not declining or weakening; enduring and persistent