primitive

Freud had a word for this kind of primitive faith; he called it illusion.

Others emphasized the allure of returning to nature and immersing oneself in a more “primitive way of being.”

That is the word limit in the primitive email system with which Hallam is hooked up to the rest of the world.

Researchers generated three-dimensional images of miniature brain regions, digestive glands, a primitive circulatory system and even traces of the nerves supplying the larva’s simple legs and eyes.

As Sigmund Freud argued a century ago, on the most primitive level, humans are subject to two primal passions: killing and sex.