1. A judgment or belief based on knowledge, research, expertise, or careful consideration of facts rather than guesswork or assumption
As a doctor, her informed opinion about the treatment options was invaluable.
Como médica, sua opinião fundamentada sobre as opções de tratamento foi inestimável.
2. A viewpoint expressed by someone with relevant knowledge or experience in a subject matter
The architect provided an informed opinion on the structural integrity of the building.
O arquiteto forneceu uma opinião fundamentada sobre a integridade estrutural do edifício.