unofficial

Definitions

Not officially authorized, approved, or confirmed.

Relating to a position or role that is held without formal appointment or recognition.

Examples

The two leaders held an unofficial meeting to discuss the terms of the treaty.

There is an unofficial rule in this office that everyone takes a break at three o'clock.

The unofficial results suggest that the incumbent candidate has won the election.

Synonyms

informal unauthorized private casual unconfirmed unverified off-the-record

Antonyms

official authorized formal sanctioned approved certified public