Radical 80 or radical do not (毋部) meaning "mother" or "do not" is one of the 34 Kangxi radicals (214 radicals in total) composed of 4 strokes. Chinese characters with a similar component 母 "mother" may also be classified under this radical.

In the Kangxi Dictionary, there are 16 characters (out of 49,030) to be found under this radical.

毋 is also the 99th indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China.

In the Hokkien language, 毋 is often used to represent the negation particle [m̩], spelled m̄ in Peh-oe-ji and Tai-lo.

• Bronze script character
• Large seal script character
• Small seal script character

The radical is also used as an independent Chinese character. It is one of the Kyōiku kanji or Kanji taught in elementary school in Japan.^[1] It is a second grade kanji^[1]