Definition of antediluvian in English:

antediluvian

Syllabification: an·te·di·lu·vi·an
Pronunciation: /ˌantēdəˈlo͞ovēən
 
/

adjective

[attributive]
1Of or belonging to the time before the biblical Flood: gigantic bones of antediluvian animals
More example sentences
  • In addition, the parallels between the Sumerian and biblical antediluvian data open up the possibility of establishing chronological correlations between the rest of the Kings List and the book of Genesis.
  • An antediluvian civilization, thriving and technologically advanced prior to the flood, managed to survive the flood due to their technological prowess.
  • One even tells its followers that they may relive former lives, back into antediluvian periods.
1.1chiefly humorous Ridiculously old-fashioned: they maintain antediluvian sex-role stereotypes
More example sentences
  • In the new dispensation, religion is being hemmed into a narrow, private world, as if a public commitment to certain beliefs is old-fashioned and antediluvian, like wearing your shirt inside your drawers.
  • But I cannot see the House of Lords' decision as some sort of cataclysm which has put a quarter of a century's family jurisprudence into antediluvian obsolescence.
  • ‘The newspaper industry prices itself in a way that is at best archaic and at worst antediluvian,’ he says.

Origin

mid 17th century: from ante- + Latin diluvium 'deluge' + -an.

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Word of the day erroneous
Pronunciation: iˈrōnēəs
adjective
wrong; incorrect