natural action is a noun meaning "a process existing in or produced by nature (rather than by the intent of human beings)". It carries one recorded sense.
a process existing in or produced by nature (rather than by the intent of human beings)
“the action of natural forces”
“volcanic activity”
Definitions, synonyms and semantic relations for natural action come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.