Small matter is a term used to describe something that is insignificant or unimportant. It can be broken down into five words: ATOMS, ATOM, TRIFLE, NIT, and DETAIL. ATOMS are the smallest particles of matter that make up all physical objects. An ATOM is a single particle of an element. A TRIFLE is a small amount of something, usually insignificant. A NIT is a tiny louse that lives in the hair of humans and other animals. Finally, a DETAIL is a small part of something larger. All of these words together describe something that is small and insignificant.