Blunt-edged is a term used to describe something that lacks a sharp edge or point. There are various synonyms that could be used in place of the word blunt-edged, including dull, rounded, obtuse, and flat. Dull suggests a lack of sharpness, while rounded refers to a surface that is curved. Obtuse indicates an angle that is greater than 90 degrees or a point that is not sharp. Flat, on the other hand, describes a surface that is level and without raised edges. Additionally, other synonyms for blunt-edged could be unsharpened, notched, chamfered, or beveled depending on the specific context.