complex and wide-ranging; labyrinthine
Describes a situation, system, or problem that is not only complicated but also has many branches or aspects, making it hard to grasp as a whole. Often used in formal or written contexts.
Because this problem is complex and wide-ranging, it will take time to solve.
複雑多岐な手続きを簡素化する必要がある。
We need to simplify the labyrinthine procedures.
複雑 simply means 'complex' or 'complicated', while 複雑多岐 emphasizes that the complexity extends in many different directions or involves numerous aspects.
多岐 means 'diverse' or 'branching into many fields', but 複雑多岐 combines this with the notion of intricacy, suggesting a tangled diversity rather than just variety.
A yojijukugo composed of 複雑 (complex) and 多岐 (many branches). The exact origin is uncertain, but it follows a common pattern of combining two two-kanji compounds to express a nuanced concept.