The definition of a square is a shape with four sides of equal length.
One that moves, works, or acts slowly.
The definition of a fossil is the preserved remains of a prehistoric organism or is slang for someone or something that is old and outdated.
Find another word for stick-in-the-muds. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for stick-in-the-muds, like: squares, fuddy-duddies, fogeys, slowpokes, conservatives, fossils and adventurers.