Definitions

1. adjective

Relating to the period of time before the appearance of the first humans in Earth’s history.

“The preadamite rocks date back to the Archaean era.”

2. noun

A hypothetical species believed to have existed before the first humans.

“The preadamite fossils were discovered in a remote region.”

3. noun

A person or thing that existed before the first humans.

“The preadamite city was said to be the oldest in the world.”