unk-unkn.

Brit.

/ˈʌŋkʌŋk/, U.S.

/ˈəŋkˌəŋk/

Origin: Formed within English, as a clipping or shortening. Etymon: unknown unknown n. at unknown adj. and n. Compounds.

Etymology: Shortened < unknown unknown n. at unknown adj. and n. Compounds, perhaps originally as a graphic abbreviation, with subsequent development of a (probably humorous) pronunciation with /k/.

slang (originally and chiefly U.S.).

An unknown factor, variable, issue, or event which it is impossible to predict or anticipate; = unknown unknown n. at unknown adj. and n. Compounds. Usually in plural.In early use chiefly used in the context of the aerospace industry.

ΘΚΠ

the mind > mental capacity > knowledge > want of knowledge, ignorance > that which is unknown > [noun] > instance of > unknown factors

unk-unk1968

1968 Electronics 11 Nov. 64/3 The chief causes of the industry's complaints are the ‘unk unks’—the unanticipated unknowns—that cannot be forecast on the basis of paper design and analytical studies, the AIA [= Aerospace Industries Association] says.

1970 Guardian Weekly 1 Aug. 24 ‘Unk Unks’..are the villains favoured by Lockheed to explain the extraordinary series of financial disasters that has led it to the verge of bankruptcy.

1991 Times of India 3 Feb. 10/5 Our war, between Iraq and the U.S.-led Allied Forces is a war of Unk-unks, to use Pentagonese slang.

2004 Managem. Sci. 50 1335/2 If unk-unks are present and tests are imperfect, then selectionism offers little value, and trial and error learning is preferred.

This entry has been updated (OED Third Edition, March 2018; most recently modified version published online March 2022).

单词	unk-unk
释义	unk-unkn. Brit. /ˈʌŋkʌŋk/, U.S. /ˈəŋkˌəŋk/ Origin: Formed within English, as a clipping or shortening. Etymon: unknown unknown n. at unknown adj. and n. Compounds. Etymology: Shortened < unknown unknown n. at unknown adj. and n. Compounds, perhaps originally as a graphic abbreviation, with subsequent development of a (probably humorous) pronunciation with /k/. slang (originally and chiefly U.S.). An unknown factor, variable, issue, or event which it is impossible to predict or anticipate; = unknown unknown n. at unknown adj. and n. Compounds. Usually in plural.In early use chiefly used in the context of the aerospace industry. ΘΚΠ the mind > mental capacity > knowledge > want of knowledge, ignorance > that which is unknown > [noun] > instance of > unknown factors unk-unk1968 1968 Electronics 11 Nov. 64/3 The chief causes of the industry's complaints are the ‘unk unks’—the unanticipated unknowns—that cannot be forecast on the basis of paper design and analytical studies, the AIA [= Aerospace Industries Association] says. 1970 Guardian Weekly 1 Aug. 24 ‘Unk Unks’..are the villains favoured by Lockheed to explain the extraordinary series of financial disasters that has led it to the verge of bankruptcy. 1991 Times of India 3 Feb. 10/5 Our war, between Iraq and the U.S.-led Allied Forces is a war of Unk-unks, to use Pentagonese slang. 2004 Managem. Sci. 50 1335/2 If unk-unks are present and tests are imperfect, then selectionism offers little value, and trial and error learning is preferred. This entry has been updated (OED Third Edition, March 2018; most recently modified version published online March 2022). < n.1968
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