reasonable person

noun

A fictional person used as a comparative legal standard to represent an average member of society and how he or she would behave or think, especially in determining negligence; sometimes formulated as "a person of ordinary prudence exercising due care in like circumstances."

Meanings

nounreasonable person (plural reasonable persons or reasonable people)

plural reasonable persons · plural reasonable people

  1. lawA fictional person used as a comparative legal standard to represent an average member of society and how he or she would behave or think, especially in determining negligence; sometimes formulated as "a person of ordinary prudence exercising due care in like circumstances."

    Synonyms: man on the Bondi tram, man on the Clapham omnibus, man on the Shau Kei Wan tram

  2. Used other than figuratively or idiomatically: see reasonable, person.

Synonyms & antonyms

nounA fictional person used as a comparative legal standard to represent an average member of society and how he or she would behave or think, especially in determining negligence; sometimes formulated as "a person of ordinary prudence exercising due care in like circumstances."

Translations

Chinese Mandarin 理性自然人
  • 理性自然人 (lǐxìng zìránrén)a fictional person used as a comparative legal standard to represent an average member of society
Finnish järkevä henkilö
  • järkevä henkilöa fictional person used as a comparative legal standard to represent an average member of society
French personne raisonnable
  • personne raisonnablea fictional person used as a comparative legal standard to represent an average member of society
Japanese 通常人, 一般人
  • 通常人 (tsūjōjin)a fictional person used as a comparative legal standard to represent an average member of society
  • 一般人 (ippanjin)a fictional person used as a comparative legal standard to represent an average member of society
Polish osoba myśląca racjonalnie
  • osoba myśląca racjonalniea fictional person used as a comparative legal standard to represent an average member of society
Romanian persoană rezonabilă
  • persoană rezonabilăa fictional person used as a comparative legal standard to represent an average member of society
Spanish persona razonable
  • persona razonablea fictional person used as a comparative legal standard to represent an average member of society
Thai วิญญูชน
  • วิญญูชน (win-yuu-chon)a fictional person used as a comparative legal standard to represent an average member of society
Cite this entry
APA

reasonable person. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/reasonable%20person

MLA

“reasonable person.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/reasonable%20person. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “reasonable person,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/reasonable%20person.

Source: reasonable person on Wiktionary, CC BY-SA 4.0.