0 Old HSK word(s):
于事无补* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

于 in, on, at / go to / surname
事 affair, matter, business / to serve / accident, incident
无 negative, no, not / KangXi radical 71
补 mend, patch, fix, repair, restore
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual

Korean:
0 NHSK word(s):
KOREAN6000 word(s):
0 KOREAN 2500 New HSK words):
0 KOREAN Sentence(s):