1. A policy, action, or decision that provokes heated debate and disagreement due to its divisive nature or disputed consequences
The government's new tax policy is a controversial measure that has sparked widespread debate.
A nova política tributária do governo é uma medida polêmica que provocou amplo debate.
2. An official action or regulation that generates strong opposition or criticism from various sectors of society
Implementing stricter immigration laws was a controversial measure that divided the nation.
Implementar leis de imigração mais rigorosas foi uma medida polêmica que dividiu a nação.