What does the adjective "antediluvian" mean?

I always think of Antediluvian as pertaining to the global flood of Noah's time. Not some sarcasm about how out-of-date something is. By the way, archeologists have found sea shells and other marine fossils on mountains over the decades. So the earth was covered with water.

the picture helps cuz the phone is out of date.

picture is a strong clue.

Player #120374466, Every culture on earth has a flood story.

now there is a word that nobody uses, I will soon forget, and will most certainly never hear again in my lifetime

Player #120374466, yes indeed, there's lots of evidence to support creation and intelligent design!

IamPhemomenal, not.

IceMan Kent, go to Church, or talk to a knowledgeable Christian.

there is definite evidence of The Flood ,and Creation everywhere, but I may never learn to look at the picture for a clue to give the response that this game considers correct.

I immediately thought of the song "Atlantis" by Donovan. He references "antediluvian kings".

meow-<, only ever heard antediluvian in a song by Arlo Guthrie

Marcy, it means extremely old, ancient, out of date, antiquated, primeval, obsolete, outmoded, primitive, primordial, prehistoric, old-fashioned, archaic … there are many synonyms to convey a similar meaning.

Antediluvian also means Antique is it