official (adjective) official: authorized, legitimate
Detalii: an official (noun) is one who holds or is invested with an office or a referee or umpire in a game or sport - (adjective) having official authority or of or relating to an office; officious means marked by excessive eagerness in offering services or advice where they are neither requested nor needed
Sinonime: associated, bilateral, collective, communal, conjoint, conjunct, connected, convertible, correlative, dependent, give-and-take, given and taken, interactive, interchangeable, interchanged, interdependent, intermutual, joint*, partaken, participated, public, reciprocal, reciprocated, related, requited, respective, returned, two-sided, united
Antonime: unauthorized, unofficial, unsanctioned