1. to weaken or damage the principles of justice, impartiality, or equal treatment
Corruption in the judicial system can undermine fairness in legal proceedings.
A corrupção no sistema judiciário pode comprometer a justiça nos processos legais.
2. to act in a way that reduces confidence in equitable treatment or honest dealing
The biased decision undermined fairness in the competition.
A decisão tendenciosa prejudicou a equidade na competição.