複ふく雑ざつ系けいMeaningsNoun1. complex systemKanji used複multiple雑crude系lineageComposed of複ふく雑ざつcomplex; complicated; intricate; mixed (feelings)Na-adjective系けいsystem; lineage; group; corollary; system (range of strata that correspond to a particular time period); (taxonomical) seriesNoun