authoritative
adjective C1
Plain meaning
trusted and showing expert knowledge or power
Exam-register meaning
In academic or exam writing, this is used to discuss trusted and showing expert knowledge or power in a more precise way.
In context
naturalThe report described authoritative source in a clear and practical way.
examThe findings show that authoritative source can influence educational, social, or economic outcomes.
Common collocations
authoritative sourceauthoritative reportauthoritative voice
Watch out
Do not overuse it as a direct replacement for “good/bad”. Use it with natural nouns such as “authoritative source”.