Authoritative

adjective

/ɔːˈθɒɹɪtətɪv/

Word Frequency: 4.8

Definitions

1.adjectiveArising or originating from a figure of authority

"The authoritative rules in this school come not from the headmaster but from the aged matron."

2.adjectiveHighly accurate or definitive; treated or worthy of treatment as a scholarly authority

"This book is the world's most authoritative guide to insect breeding habits."

3.adjectiveHaving a commanding style.

"He instructed us in that booming, authoritative voice of his."

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