0 Old HSK word(s):
不迭* * 迭* * 更迭* * 忙不迭* *

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

忙 busy, pressed for time / hustling
不 no, not / un- / negative prefix
迭 repeatedly, frequently

Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
迭 8FED + 迭 + + repeatedly, frequently 辵, 辶 失 Proceed 失 die2 +

Korean:

迭 + 迭 갈마들질
0 NHSK word(s):
KOREAN6000 word(s):
0 KOREAN 2500 New HSK words):
0 KOREAN Sentence(s):