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peremptory adjective

  /pəˈɹɛmptəɹi/
  • Positive in opinion or judgment; absolutely certain, overconfident, unwilling to hear any debate or argument (especially in a pejorative sense); dogmatic.
perentorio, imperioso
  • Accepting no refusal or disagreement; imperious, dictatorial.
tassativo
  • (legal) Precluding debate or expostulation; not admitting of question or appeal
inconfutabile, irrefutabile

peremptoriness noun

  • The quality of being peremptory
perentorietà
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