This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. An inhabitant of the earth before Adam.

n. One who holds that men existed before Adam.

n. One who lived before Adam; an inhabitant of the earth before the date assigned to Adam.

n. One who holds that there were men in existence upon the earth before Adam.

Existing or being prior to Adam.

Pertaining to the preadamites; relating to the period of the world's history prior to the time of Adam: as, the preadamite theory.

"I am trying to recall the peculiar instincts of the monsters of the preadamite world, who, coming next in succession after the molluscs, the crustaceans and le fishes, preceded the animals of mammalian race upon the earth."