peremptory

/P ER0 EH1 M P T ER0 IY0/
noun
  1. 1

    A challenge to the admission of a juror, without the challenger needing to show good cause.

adjective
  1. 1

    Precluding debate or expostulation; not admitting of question or appeal

  2. 2

    Positive in opinion or judgment; absolutely certain, overconfident, unwilling to hear any debate or argument (especially in a pejorative sense); dogmatic.

  3. 3

    Firmly determined, resolute; obstinate, stubborn.

  4. 4

    Accepting no refusal or disagreement; imperious, dictatorial.

Source: https://en.wiktionary.org/wiki/peremptory