“miscellaneous / disordered” in Japanese is 雑, read zatsu, zou (ざつ, ぞう). It is a Grade 5 Kyōiku kanji, taught in year 5 of Japanese elementary school, and appears in words such as 雑誌 (magazine).
What does 雑 mean?
部屋が雑になる。
Same sound, different character — the classic trap. Compare them side by side: