komplex

Emphasizes that something has several layers, aspects, or levels of meaning; often closer to 'multi-layered' than simply 'difficult'.

Very close to 'complex', but usually stresses difficulty of understanding or handling, especially in practical situations.

Means tangled or entangled: parts are so intertwined that it is hard to sort them out. Often used for situations, relationships, or plots.

A general word for 'difficult'; it does not necessarily imply a complex structure, but rather that something is hard to do, understand, or solve.

Emphasizes that a problem or task is hard to solve; it describes the difficulty of finding a solution rather than a general property.

Means that something demands a high level of skill, effort, or knowledge; it can even sound positive when referring to quality or high standards.

A very simple, everyday way to say something is not easy. Less precise than 'complex' and without a strong sense of structure.

Highlights that something is hard to see through or understand; often carries a nuance of secrecy, opacity, or even distrust.

Close to 'vielschichtig'; means having several layers or levels, often in an abstract sense, for example in a text, problem, or personality.