This is the 642nd most frequent Chinese word.
复杂
Complex; complicated.
Shows '复杂' used to describe the nature of a mathematical problem as being intricate and challenging.
这道数学题太复杂了，我花了很长时间才解出来。
This math problem is too complicated; I spent a long time solving it.
Shows '复杂' applied to describe a novel's storyline as layered and intricate.
那部小说情节结构复杂，充满了意想不到的转折。
The novel has a complex plot structure, full of unexpected twists.
Shows '复杂' used to characterize interpersonal relationships as multifaceted and demanding careful management.