0 Old HSK word(s):
苟* * 一丝不苟* *

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

一 one / a, an / alone
丝 silk / fine thread / wire / strings
不 no, not / un- / negative prefix
苟 careless, frivolous / illicit / grammatical particle: if, but, if only / surname / grass name / distinguish DKW 30853 (ji4)
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
苟 82DF + 苟 + + careless, frivolous / illicit / grammatical particle: if, but, if only / surname / grass name / distinguish DKW 30853 (ji4) 艸, 艹 句 Grass 句 (SATZ) gou3 +

Korean:

苟 + 苟 구차할 구 (구차 [苟且] very poor, bad) or 진실로구 (really, sincerely) also means: 다만,풀,겨우
1 NHSK word(s): 一丝不苟* 6 yi1 si1 bu4 gou3not one thread loose (idiom)/ strictly according to the rules/ meticulous/ not one hair out of place
KOREAN6000 word(s):
0 KOREAN 2500 New HSK words):
0 KOREAN Sentence(s):