Advanced maybe?
The opposite of civilized could "Primitive"
basic, elementary, first, original, primary,early
a sentence for the word primitive
The comparative form of "primitive" is "more primitive."
The opposite of primitive is advanced or sophisticated. Primitive refers to something basic, undeveloped, or in its earliest stage of existence. In contrast, advanced denotes a higher level of complexity, refinement, or progress in a particular field or context.
the shirt was primitive for it was plain
The prefix of the word "primitive" is "pre-."
most primitive
A 'primitive' facility might be considered the opposite of a 'state of the art' facility. A facility which has few tools to work with.
Example sentence - The landscape appeared primitive, yet inviting.
Primitive, or crude.
attavistic