English definition of “natural”
NATURE › 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 ill or old) This product contains only natural ingredients.
NORMAL › 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]