Thick-set is a term used to describe someone who is heavily built or muscular. However, there are several synonyms for the word thick-set, such as burly, robust, stocky, chunky, sturdy, and solidly built. These synonyms can be used interchangeably with the term thick-set, depending on the context. For instance, burly is used to describe someone who is strong and muscular, while robust is used to describe someone who is healthy, active, and energetic. On the other hand, stocky is used to describe someone who is short and heavily built, while chunky is used to describe someone who is thick or plump in appearance. Overall, these synonyms for thick-set add versatility to one's vocabulary and help them express their thoughts more accurately.