暗流 Traditional form: 暗流 Pinyin (reading): ànliú Definitions: undercurrent Characters: 暗 - dark, gloomy; obscure; secret, covert 流 - to flow, to drift, to circulate; class Traditional characters: 暗 - dark, gloomy; obscure; secret, covert 流 - to flow, to drift, to circulate; class