不完善 (bù wán shàn)

adjective HSK 5

bù wán shàn

imperfect · incomplete · not perfect · flawed

Meaning

不完善 describes something that is not yet complete, perfect, or fully developed. It combines the negation 不 with 完善 (perfect/complete), and is commonly used to acknowledge limitations, flaws, or areas needing improvement in systems, plans, products, or processes.

Usage

This term is frequently used in formal contexts, professional discussions, and self-reflective statements to diplomatically point out deficiencies. It's softer than saying something is 'bad' and implies room for improvement. Often appears in business, academic, and technical writing.

Examples

01
我们的方案还不完善，需要进一步修改。
Wǒmen de fāng'àn hái bù wán shàn, xūyào jìn yī bù xiūgǎi.
Our plan is still imperfect and needs further revision.
02
这个系统虽然不完善，但已经可以使用了。
Zhège xìtǒng suīrán bù wán shàn, dàn yǐjīng kěyǐ shǐyòng le.
Although this system is imperfect, it can already be used.

Characters

Common collocations

制度不完善
zhì dù bù wán shàn
imperfect system
还不完善
hái bù wán shàn
still imperfect
不完善的地方
bù wán shàn de dì fāng
imperfect aspects

Antonyms

Origin

完善 originally means 'perfect' or 'to perfect,' combining 完 (complete) and 善 (good). Adding the negation 不 creates the opposite meaning.