Authoritative
Authoritative adjective - Being the most accurate and apparently thorough.
Best and authoritative are semantically related. in definitive topic. In some cases you can use "Best" instead an adjective "Authoritative".
Nearby Words: authority, authoritarian
Best
Best adjective - (superlative of `good') having the most positive qualities.
Authoritative and best are semantically related. Sometimes you can use "Authoritative" instead an adjective "Best".
Both words in one sentence
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He was very competent and authoritative as a doctor, however, and several of his subordinates felt true affection and comradeship towards him, knowing that he was trying his best.
Source: Series / M*A*S*H -
In Skyfall, we're introduced to an authoritative senior figure (played by a big-time actor), named Mallory... As they're arming up at Skyfall manor, Kincaid produces a hunting knife and comments that "sometimes the old ways are the best".
Source: Film / Skyfall -
Still, many fans insisted that at least the best episode, "Yesteryear", be counted, considering that it gives a valuable look into Spock's youth and character as well as the planet Vulcan, as told by the most authoritative voice on the matter, D.C. Fontana.
Cite this Source
Best and Authoritative. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/authoritative/best
Authoritative & Best. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/authoritative/best>.
Best or Authoritative. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/authoritative/best.
Google Ngram Viewer shows how "authoritative" and "best" have occurred on timeline