nemesis
/ˈnɛməsɪs/ noun C1- An enemy, especially an archenemy. · Batman is in constant conflict with his nemesis, The Joker.
- A person or character who specifically brings about the downfall of another person or character, as an agent of that character's fate or destiny, especially within a narrative.
- The personification of the "fatal flaw" of a dramatic hero in the style of Greek tragedy.
- Polar opposite, especially of a literary character.
- The principle of retributive justice.
- A punishment or defeat that is deserved and cannot be avoided; (an instance of) retribution.
Plural nemeses
Learn nemesis in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.