If it's a matter of long establish trade routes, borders, territory, stone housing, multi generational aqua culture infrastructure, agriculture, oral transmission of history, etc. then yes, civilised.
If it's a case of a bunch of euro colonisers going "Yeah, Nuh" then no, not civilised.
I merely pointed out that if one adopts a Euro-centric definition them, indeed, Australian Aboriginals are not civilised.
This is historically what happened when the English declared Terra Nullus - a concept that was later overturned.
If you're unsure of how to reason forward and contrast varying axioms and definitions then this HN thread might of some interest and shed some insight:
https://news.ycombinator.com/item?id=34127524
Enjoy!
Pretty much all words work this way - see the joke thread under this one saying that the perpetrators in this case shouldn't be called vandals because that's originally the name of a specific German tribe.
The current colloquial definition of civilization almost certainly includes aboriginal society, and from what I can see from a quick online search, the current academic definition often does too - at least, I was able to find several references to Aboriginal civilization in a quick and casual search. However I also checked a few definitions of the word and it seems that's technically incorrect - large scale technical achievements (for example, but not exclusively, cities) are a requirement to be considered a civilization.
Looking a bit deeper, however, I did find some articles pointing out that this definition of civilization is a Eurocentric view and that we should broaden the official scope of the word to include Aboriginal culture since they had a very high level of development in other areas, just not the ones that led to building cities. That seems reasonable to me. It's important not to get hung up on the historical origin of words. Instead we should focus on the most useful definition for us modern humans who are hopefully working towards a more inclusive understanding of the world.
https://mahb.stanford.edu/library-item/australian-aboriginal...
While the origin of the word itself is quite literally Eurocentric, being a judgement and description invented by Romans, the consensus has been for a long time that civilisation did not start in Europe which undermines the idea that it's simply a Eurocentric/racist idea.
You can also certainly argue that civilisation has major faults and ignored local indigenous knowledge in colonial contexts due to a misguided sense of superiority. If I may suggest a good book on this kind of thing, check out Seeing Like a State by James C. Scott. I don't buy into the idea that civilisation is inherently superior (although I do like a lot of the things that come with it) which is probably why I don't see a need to make the word more inclusive.