廃れる;頽れる(rK) [すたれる] /(v1,vi) (1) to go out of use/to become obsolete/to die out/to go out of fashion/to go out of style/(v1,vi) (2) to decline (e.g. of morals)/to be lost/to go into decline (of a town, business, etc.)/EntL1472020/