Thumped is a word used to describe a heavy, dull sound made by a hard blow or impact. Synonyms of thumped include bumped, slammed, pounded, beaten, struck, smacked, whacked, and thwacked. Bumped is often used to describe a light impact, while slammed and pounded tend to suggest more forceful and aggressive impacts. Beaten and struck are commonly used in a combat or athletic context, while smacked and whacked are often used to describe sudden and sharp impacts. Thwacked is a less common synonym that implies hitting with a heavy object. Overall, there are a variety of synonyms for thumped that convey different levels of force and impact.