* Their great-grandparents were native Hawaiian.
* Their grandparents were also of Hawaiian descent.
* Their parents were also of Hawaiian descent.
* They themselves are of Hawaiian descent.
It's important to note that:
* There is no single definition of "Hawaiian". This term can be used to describe someone who is Native Hawaiian, or someone who simply has Hawaiian ancestry.
* The term "generation" is not always a clear-cut concept. There are many ways to define a generation, and different families may have different interpretations.
Overall, "fourth generation Hawaiian" generally indicates someone who is deeply connected to Hawaiian culture and heritage, even if they haven't lived in Hawai'i themselves.