un
o
ffi
cial
Comparative
more unofficial
Superlative
most unofficial
1
lacking validation or approval from an established authority or organization
- The unofficial spokesperson provided information to the press without official approval.
- The unofficial policy of flexible work hours was informally adopted by some employees.
- Unofficial sources reported on the incident before any official statement was released.
- The unofficial version of the document circulated among staff before final approval.
- Unofficial transcripts of the meeting were shared among team members for reference.
Antonyms:
2
not officially established