I have the feeling that all dictionary entries are not really cutting to the core of bildungsfern, because it is a more neutral, descriptive term to show that someone did have the privilege to receive good education, which is not his fault.
I also need the most accurate term, because I would like to add a new term to the scientific discourse, that is nachhaltigkeitsfern to show that these terms can be clearly delineated, though correlating. Any suggestions for either of the two?