authoritative
🇺🇸
/əˈθɔːrəteɪtɪv/
🇬🇧
/ɔːˈθɒrətətɪv/
adjective
R
expecting obedience and respect
She spoke in an authoritative voice that made everyone listen.
R
trustworthy and correct
This is the most authoritative guide on the topic.
translation
expecting obedience and respect; trustworthy and correct