Synonyms:
unofficial
Meaning: not having official authority or sanction; "a sort of unofficial mayor"; "an unofficial estimate"; "he participated in an unofficial capacity"
Usage examples
I am not alluding to unofficial skirmishes, and unofficial predatory measures which we have condoned out here.
With this parting injunction, unofficial though it was, the riders loped away, and my nervous troop, at half-past two, "hit the trail" in lively form.