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authoritative

au·thor·i·ta·tive

authoritative

 
 
pronunciation:
tho rih teI tihv [or] tho rih teI tihv
features:
Word Combinations (adjective)
part of speech: adjective
definition 1: having or displaying authority.
The police officer addressed the suspect in an authoritative tone.He is not authoritative enough to keep order in the classroom.
synonyms:
masterly, powerful
antonyms:
servile, slavish
similar words:
authoritarian, canonical, commanding, imperative, masterful, peremptory, weighty
definition 2: accepted as correct, true, or reliable as a source of information; official.
You need to get your information from an authoritative reference work.I was told this was an authoritative edition of Blake's poems.
synonyms:
accepted, approved, reliable
antonyms:
unreliable
similar words:
authentic, canonical, dogmatic, official, recognized, standard
Word CombinationsSubscriber feature About this feature
derivations: authoritatively (adv.), authoritativeness (n.)