a. and sb. [f. ANTE- + diluvi-um the deluge + -AN.] A. adj.

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  1.  Of or belonging to the world before the Noachian deluge; existing before the Flood.

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1657.  Trapp, Comm. Job xxii. 15, II. 200. Those Antediluvian Belialists.

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1748.  Hartley, Observ. Man, I. iii. § 1 ¶ 83. Parts of the antediluvian Language.

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1821.  W. Craig, Drawing, etc. ii. 109. The ingenious Dr. Burnet … has made the antediluvian world a beautiful, smooth sphere, entirely covered with fine rich pasture land.

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  2.  Concerning or referring to the period before the Flood.

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1646.  Sir T. Browne, Pseud. Ep., 344. The antediluvian Chronology.

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a. 1849.  H. Coleridge, Ess., II. 299. The antediluvian and postdiluvian history.

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  3.  Of the sort which obtained before the Flood.

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1698.  Norris, Pract. Disc., IV. 367. Could I then lengthen out my Span to an Antediluvian stretch.

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1711.  F. Fuller, Med. Gymn., Pref. An Antediluvian Diet of Roots and Vegetables.

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1846.  H. Rogers, Ess., I. iv. 165. An antediluvian lease of life.

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  4.  Belonging or proper to long past ages; very antiquated, primitive. (In a disparaging sense.)

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a. 1726.  Vanbrugh & Cib., Prov. Husb., III. (1730), 334. Such primitive antediluvian notions of life.

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1823.  Lamb, Elia, Ser. I. xxiv. (1865), 188. The coltage, a sorry antediluvian make-shift of a building.

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  B.  sb. [the adj. used absol.]

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  1.  One who lived before the Flood; fig. one who attains to a very great age.

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1684.  T. Burnet, Th. Earth, I. 222. The long lives of the antediluvians.

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1713.  Guardian, No. 101 (1756), II. 81. An antediluvian could not have more life and briskness in him at threescore and ten.

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1823.  Scott, St. Ronan’s, xxxi. From what cursed old antediluvian, who lived before the invention of spinning-jennies, she learned this craft, Heaven only knows.

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