the opposite word of genious. as in someone who could have been a acknowledged genious if he had had the possibility to develop his talent but since he didn't, he ended up being a complete loser, maybe even abusing drugs or ending up in mental care, because that was the only thing he wanted and was capable to do. As in a sentence like "the gap/distance (?) between genious and (insert word) was not as wide(or long) as he/she would have thought." I don't think 'loser' covers it completely.