This exercise is about color and the moods the colors can represent. These contrasting words I 'translated' into colors and this is what they look to me:
I know that cultures respond different to colors and even in our Western cultures there are opposite words which can be represented into the same colors like love and hate. Many people associate both colors with red. Even in the examples I used some of them are a bit alike. The association with active, young and healthy can be done in the same color.