Nowhere is classified here as an adjective describing a place with no positive identity or direction, as in 'a nowhere town' - a town that is insignificant or isolated. However, this is debatable; 'nowhere' is more commonly classified as an adverb indicating no place or position (e.g., 'He looked nowhere'). In this context, it may function adjectivally by modifying a noun, though this is not its primary grammatical role.