inscrutable
[形容詞]
extremely difficult or seemingly impossible to understand or interpret due to its unclear intent or cause

不可解な, 謎めいた
muddled
[形容詞]
lacking clarity or coherence

混乱した (こんらんした), 不明瞭な (ふめいりょうな)
Ex: muddled layout of the city streets , combined with unclear signage , caused tourists to frequently get lost .
idiot-proof
[形容詞]
designed to be so simple that even someone with little knowledge or skill can use it without making mistakes

バカでも使える, 初心者向けの
convoluted
[形容詞]
(of sentences, explanations, arguments, etc.) long and difficult to understand, often due to complexity or excessive detail

複雑な (ふくざつな), 難解な (なんかいな)

LanGeekアプリをダウンロード