Radical 42 or radical small (小部) meaning "small" or "insignificant" is one of the 31 Kangxi radicals (214 radicals total) composed of three strokes.

In the Kangxi Dictionary, there are 41 characters (out of 49,030) to be found under this radical.

小 is also the 36th indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China. Its inversed form ⺌ is the associated indexing component affiliated to the principal indexing component 小.

• Oracle bone script character
• 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 first grade kanji^[1]