If you see someone with a tear in their eye, what do you assume?
Does the tear indicate that they are happy, sad, or indifferent? Choose the answer that is most likely the case.
This is a complicated matter. The answer depends upon the particular country and, moreover, who is making the assessment. In some nations, the general thought is that South Africa serves as the model of a nation that overcame - rather quickly - its racist and fascist leadership. Other nations - especially those in Western Europe - feel that South Africa, as a nation, still has plenty of strides to make toward racial equality and, moreover, making reparations for past injustices.
Turn sadly to a adjective first: sad
Add most or -est
So it can be most sad or saddest