Elemental (adjective)

1. Relating to or consisting of the basic elements of something.
2. Relating to the four elements of ancient and medieval philosophy (earth, air, fire, and water).
3. Of or relating to natural forces, especially wind or weather.

Origin:

Late middle english: from late latin elementalis, from elementum (see element).

Examples:

1. The elemental forces of nature are powerful and awe-inspiring.
2. She made a sculpture that captured the elemental beauty of the ocean.
3. This is one of the elemental questions of philosophy.
4. The elemental composition of the atmosphere is constantly changing.
5. The elemental powers of the earth are often invoked in magic rituals.