Definitions

1. noun

A point in time before the horizon of human knowledge or experience, often referring to a speculative or hypothetical period.

“The discovery of the lost city was said to be a revelation from the prehorizon of human understanding.”

2. adjective

Relating to or characteristic of a period before the horizon of human knowledge or experience.

“The prehorizon theories about the origins of life on Earth are still a topic of debate among scientists.”