paramour

/ˈpɛrəˌmʊr/
noun
  1. A person with whom someone is having a romantic or sexual relationship, especially a secret one outside of marriage.
    • In the novel, the queen's paramour was a trusted knight.
    • She discovered letters revealing that her husband had a paramour for years.
    • The scandal involved a politician and his secret paramour.
Antonyms
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