孳孳 Traditional form: 孳孳 Pinyin (reading): zīzī Definitions: variant of 孜孜 (zīzī) Characters: 孳 - to breed; to produce, to bear; to grow recklessly 孳 - to breed; to produce, to bear; to grow recklessly Traditional characters: 孳 - to breed; to produce, to bear; to grow recklessly 孳 - to breed; to produce, to bear; to grow recklessly