W: (adj) unofficial [Opposed to: official] (not having official authority or sanction) "a sort of unofficial mayor"; "an unofficial estimate"; "he participated in an unofficial capacity"
S: (adj) unofficial (not having official authority or sanction) "a sort of unofficial mayor"; "an unofficial estimate"; "he participated in an unofficial capacity"
S: (adj) unofficial (not officially established) "the early election returns are unofficial"
S: (adj) unofficial (not having official authority or sanction) "a sort of unofficial mayor"; "an unofficial estimate"; "he participated in an unofficial capacity"