undurchsichtig

The German word "undurchsichtig" is an adjective that means "opaque" or "transparent". It is derived from "undurch" (not passable) and "sicht" (vision or sight). "Undurchsichtig" can describe something that is not clear, whether physically (like an opaque substance) or metaphorically (like a confusing situation). Similar words in German include "opaque" (opaque) and "nebulös" (nebulous).

The difference is that "undurchsichtig" can pertain both to physical opacity and a lack of clarity in processes or intentions, while terms like "nebulös" typically refer to vague or unclear situations.