Respuesta :
i believe clean:spotless since were trying to compare the too in a similar matter
i think the word set that completes the analogy disagreement: argument is:
unskilled : inexperience
Unskilled means not having or requiring special skill or training,the disagreement with the ability or the capacity to do something, therefore the argument to complete the analogy is the inexperience,understood as the reason of the lack of skill.