Unnatural is the ninth extended play by South Korean-Chinese girl group WJSN.

It was released on March 31, 2021, by Starship Entertainment and distributed by Kakao Entertainment.

It contains a total of six songs, including the lead single "Unnatural".

Members Cheng Xiao, Meiqi and Xuanyi were not a part of the album release due to scheduling conflicts in China.

[1] It was later announced that they would return with their ninth mini album Unnatural on March 31.