authoritative.
Arising or originating from a figure of authority.
Meaning & usage
Arising or originating from a figure of authority.
The authoritative rules in this school come not from the headmaster but from the aged matron.
Highly 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.
Having a commanding style.
He instructed us in that booming, authoritative voice of his.
Where this word comes from
Etymology tree Proto-Indo-European *h₂ewg-der. Proto-Indo-European *h₂owg-éye-ti Proto-Italic *augejō Proto-Italic *augeō Latin augeō Proto-Indo-European *-tōr Proto-Italic *-tōr Latin -tor Latin auctor Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Proto-Italic *-tāts Latin -tās Latin auctōritāsbor. Old French autoritébor. Middle English auctorite English authorit(y) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-tós Proto-Indo-European *-eh₂tos Proto-Italic *-ātos Latin -ātuslbor. English -ate Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Old French -ifbor. Middle English -yf English -ive English -ative English authoritative From authorit(y) + -ative.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.