Antediluvian

Antediluvian

an·​te·​di·​lu·​vi·​an /ˌan(t)ēdəˈlo͞ovēən/

Adjective

antiquated, ancient, from a long time ago

“The coal on your grate gives out in decomposing to-day exactly the same amount of light and heat which was taken from the sunshine in its formation in the leaves and boughs of the antediluvian tree.”

– Ralph Waldo Emerson (1803 – 1882)