What analogy best completes adorn disfigure?

The analogy that best completes "adorn: disfigure" is "enhance: impair." Just as "adorn" means to decorate or add beauty while "disfigure" means to spoil or mar the appearance, "enhance" refers to improving or adding value, while "impair" means to weaken or damage. Both pairs illustrate oppositional relationships where one Word represents a positive action and the other a negative one.