樂觀主義 (lok6 gun1 zyu2 ji6) — optimism in Cantoneselokˍ₆樂gunˉ¹觀zyuˊ²主jiˍ₆義简 乐观主义Mandarin Pinyin: le4 guan1 zhu3 yi4Meaning of 樂觀主義nounoptimism