ipso factoとは 意味・読み方・使い方

発音

• (Received Pronunciation) IPA: /ˌɪpsəʊ ˈfæktəʊ/

副詞

ipso facto (not comparable)

1. By that very fact itself; actually.

   Coordinate term: eo ipso

   • 1919, Henry B[lake] Fuller, “Cope at His House Party”, in Bertram Cope’s Year: A Novel, Chicago, Ill.: Ralph Fletcher Seymour, The Alderbrink Press, →OCLC, page 94:

     Cope was not long in feeling him as operating on the unconscious assumption—unconscious, and therefore all the more damnable—that the young man in business constituted, ipso facto, a kind of norm by which other young men in other fields of endeavor were to be gauged: […]

   • 1999 April, Bryan Caplan, “The Austrian Search for Realistic Foundations”, in Southern Economic Journal, volume 65, number 4, page 833:

     For [Ludwig von] Mises or [Murray] Rothbard, it is simply confused to posit latent preferences; if two individuals fail to make an exchange, then this ipso facto demonstrates that at that moment at least one of them would not have benefited from the exchange.

   • 2011 April 8, James McWilliams, “An Inconvenient Truth: Free-Range Meat Isn't 'Natural'”, in The Atlantic‎:

     We've imbued "natural food" with such virtuous connotations that meat supposedly raised according to the law of nature is, ipso facto, thought to be an ethically worthwhile choice.

   • 2023 October 10, HarryBlank, “The Cruelest Fight”, in SCP Foundation‎, archived from the original on 31 August 2024:

     Intellectually, Ibanez had understood that there would be a lot of caverns. She'd once read that the Great Lakes, the largest freshwater bodies in the world, had a surface area of something like a quarter of a million square kilometres. The Mishepeshu were said to have used their tunnels to travel between the lakes and their islands. Ipso facto, there would be a lot of interior space down here. She'd patrolled some of it before. She'd seen it mapped by drones like the ones Nascimbeni had used. She should have been prepared.

形容詞

ipso facto (not comparable)

1. Being such by itself, or by its own definition; inherent.
   • 1984 April 14, Richard Knisely, “Quintessential Narcissism”, in Gay Community News, page 13:

     Is not the reading of another's diary an ipso facto act of voyeurism?

参考

• per se

Further reading

• “ipso facto, adv.”, in OED Online ⁠, Oxford: Oxford University Press, launched 2000.
• “ipso facto”, in OneLook Dictionary Search.