Belonging or pertaining to, or existing in, the time prior to the great flood described in Genesis, or (by extension) to a great or destructive flood or deluge described in other mythologies.
[P]erhaps ſome perſons might outlive Methuſelah; the Text intending onely the maſculine line of Seth, conduceable unto the Genealogy of our Saviour, and the antediluvian Chronology.
Of animals and plants: long extinct; prehistoric.
Having already described him [the whale] in most of his present habitatory and anatomical peculiarities, it now remains to magnify him in an archæological, fossiliferous, and antediluvian point of view.
Of a person or thing: very old; ancient.
[H]is eldest son Bo-bo, […] let some sparks escape into a bundle of straw, which kindling quickly, spread the conflagration over every part of their poor mansion, till it was reduced to ashes. Together with the cottage (a sorry antediluvian make-shift of a building, you may think it), what was of much more importance, a fine litter of new-farrowed pigs, no less than nine in number, perished.
A person who lived in the time prior to the great flood described in Genesis, especially one of the biblical patriarchs.
PIE word *dwís From ante- (prefix meaning ‘prior to in time’) + Latin dīluvium (“a flood”) + -an (suffix meaning ‘of or pertaining to’ forming adjectives; and forming agent nouns), referring the stor...
Select a language to see translations
A person with extremely old-fashioned attitudes, ideas, etc., especially to a laughable extent; a fogey or old fogey.