The term "spic and span" is often used to describe clean and tidy places or objects. However, its antonyms would be "filthy and messy", "grimy and disheveled", "dusty and cluttered", or "dirty and untidy". These words are used to indicate that something is not clean, well-organized, or well-maintained. The opposite of spic and span could be perceived as unappealing, and it could be considered a bad thing to be in such a state. People often strive to keep their living spaces clean and tidy, and these antonyms could be used to describe spaces that have not been given adequate attention or care.