Find Antonyms

unauthoritative Antonyms

Opposite of unauthoritative

Because the opposite of unauthoritative shifts with each meaning, the 10 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Not able to be trusted as accurate, reliable, or definitive; lacking recognized expertise or factual weight.

Usage Example

"The historian dismissed the anonymous pamphlet as an authoritative source of information."

Strongest
authoritative
definitive
Strong
reliable
credible
trustworthy
authentic

• adjective (Context 2)

Lacking official power, jurisdiction, or a commanding presence that inspires obedience and respect.

Usage Example

"His hesitant, authoritative tone failed to quiet the restless audience."

Strongest
authoritative
commanding
Strong
official
decisive
assertive

Similar words to unauthoritative

Words similar to unauthoritative shift depending on context. Common synonyms include:

unreliable
unofficial
unverified
unsubstantiated
unauthorized
diffident
inaccurate
tentative
See all synonyms of unauthoritative

• Nearby Words

unaudited
unauspicious
unauthentic
unauthoritative
unauthorized
unavailability
unavailable

Cite this Entry

Wordmom. (2026). Antonyms for Unauthoritative. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/unauthoritative
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