unofficial

/ənəˈfɪʃəl/

/ənəˈfɪʃəl/

Definitions of unofficial

1. adjective

   not having official authority or sanction
   “a sort of unofficial mayor”

   “an unofficial estimate”

   “he participated in an unofficial capacity”

   synonyms:

   unauthorised, unauthorized

   not endowed with authority

   drumhead, summary

   performed speedily and without formality

   informal, loose

   not officially recognized or controlled

   unauthorised, unauthorized, wildcat

   without official authorization

   unsanctioned

   without explicit official permission

   antonyms:

   official

   having official authority or sanction

   authorised, authorized

   endowed with authority

   authorised, authoritative, authorized

   sanctioned by established authority

   ex officio

   by virtue of an office or position

   formal

   characteristic of or befitting a person in authority

   formalised, formalized

   given formal standing or endorsement; made official or legitimate by the observance of proper procedures

   semiofficial

   having some official authority or sanction
2. adjective

   not officially established
   “the early election returns are unofficial”

   synonyms:

   unconfirmed

   not finally established or settled