dixit

/ˈdɪksɪt/
noun
  1. An authoritative statement or assertion, often one that is not supported by proof.
    • He offered his dixit on the matter, but no one asked for evidence.
    • The manager's dixit was accepted without question by the team.
    • In court, the witness's dixit was taken as fact by the jury.
Antonyms
What does "dixit" mean? | whatsthatwordmean | whatsthatwordmean