Nutty as fruitcake and Unfastidious

Unfastidious and nutty as fruitcake are semantically related. In some cases you can use "Unfastidious" instead an adjective phrase "Nutty as fruitcake".

Unfastidious adjective - Marked by an absence of due or proper care or attention to detail; not concerned with cleanliness.

Nutty as fruitcake and unfastidious are semantically related. Sometimes you can use "Nutty as fruitcake" instead an adjective "Unfastidious".