authoritative source

Переводы
авторитетный источник
The report was based on information from an authoritative source.
Отчет был основан на информации из авторитетного источника.
Определения
An authoritative source is a reliable and credible reference or document that is recognized for its expertise, accuracy, and trustworthiness in a particular field or subject matter. It is often used to support claims, provide evidence, or serve as a basis for research and decision-making.
Слова
authoritative

прилагательное
авторитетный
source

существительное
источник