noun, na-adjective
complex and subtle; delicately intricate
Describes something that is both complicated and nuanced, often used for situations, emotions, or artistic expressions that are hard to grasp simply.
彼の表情は複雑微妙で、本心が読めなかった。
His expression was complex and subtle, and I couldn't read his true feelings.
この問題は複雑微妙な要素を含んでいる。
This issue contains complex and subtle elements.
A compound of 複雑 (complex) and 微妙 (subtle/delicate). The exact historical derivation is uncertain, but it is a straightforward combination of two common Sino-Japanese words.