The term "firststring" can be used to describe someone who is a top performer or a leading player in their field. However, there are several antonyms to this word that describe individuals who may be considered less skilled or experienced. These include terms like "benchwarmer," "second-string," "official," and "amateur." While these words may not carry the same prestige as "firststring," they are still valuable in their own right. Benchwarmers may not be starters, but they are still important members of the team. Second-string players may not always get to play, but they are ready to step in when needed. And while an official may not be a leading player, they are still responsible for maintaining order and fairness in their field.