authoritative

• authoritative

authoritative

Adjective

having authority or ascendancy or influence; "an important official"; "the captain's authoritative manner"

Synonyms:

• authoritative
• important

Adjective

of recognized authority or excellence; "the definitive work on Greece"

Synonyms:

• authoritative
• definitive

Adjective

sanctioned by established authority; "an authoritative communique"; "the authorized biography"

Synonyms:

• authoritative
• authorized
• authorised