Meaning of 原始的 in Japanese

They used those primitive tools.

When the boys go camping, they enjoy living in a primitive way.

Primitive calculating machines existed long before computers were developed.

This was quite primitive compared to that.

There are so-called primitive cultures in the jungles of the Amazon and on the island of New Guinea, and there are so-called advanced cultures in Europe, Asia, and Africa, but the languages of these cultures are all equally advanced and complex.