authoritative

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(au-thor-i-ta-tive) 5 syllables

Definition

adjective. 1 having authority or ascendancy or influence; 2 of recognized authority or excellence; 3 sanctioned by established authority

Example Sentence

A dictionary is an authoritative source for the spelling of words.

Synonyms

important; influential; definitive; authorized

Antonyms

uninfluential; unofficial

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authoritative
Hear It! Say It! Write It!

Rhymes

  • authoritative