This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
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adj. Putting an end to all debate or action: a peremptory decree.

adj. Not allowing contradiction or refusal; imperative: The officer issued peremptory commands.

adj. Having the nature of or expressing a command; urgent: The teacher spoke in a peremptory tone.

adj. Offensively self-assured; dictatorial: a swaggering, peremptory manner.

adj. Precluding debate or expostulation; not admitting of question or appeal; positive; absolute; decisive; conclusive; final.

adj. Positive in opinion or judgment; decided; dictatorial; dogmatical.

adj. Firmly determined; unawed.

That precludes or does not admit of debate, question, or expostulation; hence, express; authoritative; positive; absolute: as, a, peremptory command or call.

In law, final; determinate; absolute and unconditional: as, a peremptory action or exception.

Fully resolved; resolute; determined; positive in opinion or judgment; dogmatic: said of persons.

Positively settled upon; that positively must be done, etc.

Synonyms and Authoritative, Dogmatic, etc. See magisterial.

Express, absolute, imperative, categorical.

n. A peremptory order.

Unquestionably; positively.

adj. not allowing contradiction or refusal

adj. putting an end to all debate or action

adj. offensively self-assured or given to exercising usually unwarranted power

"But, you say, The exercise of that peremptory is not based on any impermissible ground (i.e., race, gender etc.)"

imperative    decisive    domineering   

peremptory challenge    peremptory pleas    peremptory defenses    peremptory inference    peremptory mandamus    peremptory writ    peremptory day   

arbitrary    absolute    decisive    express    authoritative    positive    dogmatical    conclusive    final    decided   

curt    imperious    brusque    urgent    emphatic    authoritative    dictatorial    abrupt    imperative    explicit