Bigleague refers to something or someone that is significant, influential, and well-known. It is often used to describe individuals or activities in competitive fields such as sports, politics, and business. Synonyms for bigleague include prominent, renowned, celebrated, distinguished, influential, and notable. Other alternatives include notable, elite, established, leading, well-regarded, and elite. In addition, people often use terms such as A-list, top-tier, first-rate, or heavyweight to describe something or someone that belongs to the bigleague. Some people might also use phrases such as a major player, heavyweight contender, or big cheese to describe someone who is considered to be at the top of their game.