宿(しゅくてき)

しゅくてき
noun
archenemy, old rival
person
1. archenemy, old rival, longtime nemesis
An enemy or rival with whom one has had a long-standing conflict or rivalry. Implies a deep, enduring opposition.
宿敵(しゅくてき)(たお)
To defeat one's archenemy.
宿敵(しゅくてき)対決(たいけつ)ついに実現(じつげん)した
The showdown with the longtime rival has finally come to pass.
The two teams are longtime rivals, and the stadium is packed every time they play.

宿敵(しゅくてき) combines 宿(しゅく) (long-standing, old) and (てき) (enemy). The 宿(しゅく) component implies something that has persisted over a long period.

Common collocations

Usage

Used in sports, fiction, history, and politics to describe deeply rooted rivalries. It carries a dramatic, literary feel and is commonly seen in sports journalism and manga/anime narratives.