The term "blackfellow" is considered outdated and offensive in modern times. Thankfully, there are many synonyms available that can be used to refer to Indigenous Australians in a respectful and culturally appropriate way.
Some of these synonyms include: First Nations people, Aboriginal people, Torres Strait Islanders, Indigenous Australians, and Native Australians. Each of these terms recognizes and respects the cultural diversity and histories of the various groups of Indigenous Australians.
It is important to use these terms with sensitivity and to seek out the preferences of the Indigenous communities themselves. By using appropriate and respectful language, we can help to foster stronger relationships with Indigenous Australians and acknowledge their important contributions to our shared cultural heritage.