Meaning of “natural” - Learner’s Dictionary

natural

adjective us uk /ˈnætʃərəl/
The country is richly endowed with natural resources.The Alps form a natural barrier between Italy and Switzerland.We try to use natural fabrics wherever possible.Methane is the main constituent of natural gas.This plant can be used as a natural antiseptic.
NATURE

B1 Something that is natural exists or happens because of nature, not because it was made or done by people:

natural gas/resources
natural beauty
to die of natural causes (= because you are sick or old)
This product contains only natural ingredients.
NORMAL

B2 normal or expected:

a natural impulse/instinct
It's perfectly natural to feel nervous.
→ Opposite unnatural
FROM BIRTH

If you have a natural characteristic, it is something you have been born with:

a natural talent
She's a natural athlete/blonde.
naturalness noun [ U ]

(Definition of “natural” from the Cambridge Learner’s Dictionary © Cambridge University Press)