Pioneers are trailblazers, innovators, groundbreakers, and forerunners. They are the vanguards in any field who lead the way for others to follow. Synonyms for pioneers include adventurers, explorers, pioneers, discoverers, trailbusters, pathfinders, and leaders. They are trendsetters who set an example for others to emulate. Pioneers are risk-takers who venture into new territory, leaving their mark for posterity. They are the heroes of society who inspire others to achieve greatness. In short, the synonym for pioneers represents a class of people who have made a significant contribution in their respective fields and have left an indelible imprint on history.