0 Old HSK word(s):
落后分子* *

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

落 fall, drop / net income, surplus
后 queen, empress, sovereign / (simp. for 後) behind, rear, after
分 divide / small unit of time etc.
子 offspring, child / fruit, seed of / 1st terrestrial branch
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual