peremptorily

/pəˈrɛmptərəli/
adverb
  1. In a way that allows no refusal or discussion; abruptly and decisively.
    • The manager peremptorily rejected the proposal without hearing the details.
    • She peremptorily told her assistant to cancel all afternoon meetings.
    • The judge peremptorily dismissed the objection before the lawyer could explain.
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