1
to go out of use;to become obsolete;to die out;to go out of fashion;to go out of style
See also:
廃れる (すたれる)
2
to be hurt (of honour, reputation, etc.);to be harmed;to be sullied
See also:
男がすたる (おとこがすたる)
Other forms
頽る 【すたる】