ふくざつ
complicated, intricate
Layer on layer with everything mixed through it and none of it sorted. A few ふく more of them each time somebody touches it, and that program is a mess: ふくざつ.
単純 たんじゅん is the direct contrast, simple as in uncomplicated, and 簡単 かんたん is simple as in easy.
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Emaki is not affiliated with, or endorsed by, Kaishi 1.5k or its authors. The word, reading and meaning come from the Kaishi 1.5k deck, used with their permission. The mnemonic, the note and the kanji breakdown are original work, published under CC BY-SA 4.0.