0 Old HSK word(s):
不计其数* *

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

不 no, not / un- / negative prefix
计 plan, plot / strategem / scheme
其 his, her, its, their / that
数 number / several, count / fate
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual