údolní
Údolní is a Czech adjective derived from the noun údolí, meaning "valley." It is used to describe something that is located in, related to, or characteristic of a valley. For example, údolní potok would refer to a stream flowing through a valley, and údolní krajina would describe a valley landscape. The adjective can also be used in place names, such as Údolní Street (Údolní ulice) in various Czech towns, indicating its position within a valley. In a geographical context, it denotes features or phenomena associated with the specific environment of a valley, which often include differences in temperature, humidity, and vegetation compared to surrounding higher ground. The word functions similarly to the English "valley" when used as an adjective, such as "valley floor" or "valley mist."