孜孜 zīzī diligent Origin Definitions Defs Strokes Stroke Words Sentences Sents zīzī diligent · tirelessly · carefully · gentle · chirp 孜 zī reduplication diligent (bound form) diligent; hard-working; often used in the phrase 孜孜 zīzī to describe unwearied effortzīzī joyful 孜 zī reduplication joyful (bound form) used in the compound 喜孜孜 xǐzīzī to describe a state of joy or happiness