Synonyms of unofficial

unofficial

adjective

as in unauthorized

Synonyms & Similar Words

• unauthorized
• informal
• unorthodox
• unconventional
• unceremonious
• heterodox
• irregular
• casual
• free and easy
• easygoing
• familiar
• offhand
• lax
• relaxed
• ultracasual
• loose

Antonyms & Near Antonyms

• regular
• formal
• conventional
• ceremonial
• routine
• proper
• orthodox
• correct
• ceremonious
• rigid
• decorous
• stiff
• restrained
• uptight
• inhibited
• stuffy
• constrained

Example Sentences

Recent Examples of unofficial

The physical locations of their retail spaces further this idea: Miron Crosby’s flagship studio is located in Dallas’s ritzy Highland Park Village, and another is in Aspen, Colorado, unofficial home of the jet set. —Perrie Samotin, Glamour, 14 Mar. 2025

Several citizens have formed groups to carry out their own unofficial sting operations, which often involve a member of the group posing as a decoy minor. —Julia Marnin, Miami Herald, 14 Mar. 2025

Now, according to the outlet, the building has been renamed and repurposed to Bell Works, and serves as a tourist attraction and unofficial town square, that includes an indoor promenade with shops and a food court. —Jordana Comiter, People.com, 14 Mar. 2025

Dubbed the unofficial fifth major championship, most of the best players in the world are in the field. —Raja Krishnamoorthi, Newsweek, 13 Mar. 2025