Meaning & use
archnemesis
A person's greatest and most persistent rival or enemy, especially in a recurring conflict.
See it in a sentence
In the comic series, the detective's archnemesis always seems to escape at the last moment.
The two chess champions had become archnemeses after a decade of close matches.
A note on using this word
Archnemesis is often used playfully in everyday speech, not only for serious enemies but also for a longtime rival in sports, games, or work.
Words with a similar meaning
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Words with an opposite meaning
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