1. to have the quality or character of being untrue, insincere, or unconvincing when heard
His explanation sounds false to me; I don't believe him.
A explicação dele soa falsa para mim; não acredito nele.
2. to appear dishonest or deceptive based on the way something is expressed
That promise sounds false coming from someone with a history of broken commitments.
Essa promessa soa falsa vindo de alguém com histórico de compromissos não cumpridos.