Well-muscled is a term used to describe someone who has a STRONG, muscular physique. It is often used to describe athletes or bodybuilders who have developed their muscles through exercise and training. The term can also be used to describe someone who is naturally muscular. The crossword solutions for the term well-muscled are 'BUILT' (5 letters) and 'STRONG' (6 letters). These words accurately describe someone who is well-muscled, as they both imply a muscular physique that has been developed through physical activity.