adversary
🇺🇸
/ˈædvərseri/
🇬🇧
/ˈædvəsəri/
an opponent or enemy in a conflict or competition
In the debate, she faced a skilled adversary who challenged her arguments effectively.
在辯論中,她面對一位技藝高超的對手,對方有效地挑戰了她的論點。