1. to make unstable or insecure; to undermine the stability of something or someone
The political scandal threatened to destabilize the government.
O escândalo político ameaçou desestabilizar o governo.
3. to disrupt the balance or equilibrium of a system, market, or organization
Economic sanctions can destabilize a country's currency.
As sanções econômicas podem desestabilizar a moeda de um país.