- 残缺不全 cánquēbùquán incompletedescribes something that is broken, damaged, or lacking parts, resulting in an incomplete state.
- 五音不全 wǔyīnbùquán tone-deafunable to sing in tune or perceive musical pitch accurately
- 成骨不全症 chénggǔbùquánzhèng osteogenesis imperfectaosteogenesis imperfecta (OI); brittle bone disease