An environmental system in which minimal to no anthropisation has occurred and non-human agents are the primary determinants of the system's dynamics and composition. [ https://en.wikipedia.org/wiki/Natural_environment https://en.wikipedia.org/wiki/Anthropization ]
Term information
In most contexts, 'natural' is defined by the lack of intervention or influence by humans and their activities. On Earth, most environments fall on a scale between completely natural and anthropised.