Find Antonyms
official Antonyms
Opposite of official
Because the opposite of official shifts with each meaning, the 11 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
• adjective (Context 1)
Authorized, approved, or issued by a government, organization, or person in a position of legitimate authority.
Usage Example
"The university will release the unofficial examination schedule at the end of the week."
Strongest
unofficial
unauthorized
unapproved
unsanctioned
Strong
informal
illegitimate
• adjective (Context 2)
Relating to an office, post, or position of public duty, trust, and authority.
Usage Example
"The mayor attended the ribbon-cutting ceremony in an unofficial capacity."
Strongest
unofficial
informal
Strong
private
personal
• noun (Context 3)
An impartial person appointed to administer the rules and judge play in a sporting contest, such as a referee or umpire.
Usage Example
"The ringside player stopped the match temporarily to check the athlete's equipment."
Strong
player
competitor
contestant
Similar words to official
Words similar to official shift depending on context. Common synonyms include:
authorized
referee
umpire
approved
administrator
authoritative
officer
formal
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Official. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/official