functionary, ex officio, regular, authoritative, formal, established, prescribed, confirmed, authorized, semiofficial, more...

unofficial, informal, unauthorized, casual, unofficial

police officer, firefighter, teacher, judge, politician, military officer, ambulance driver, tax collector, postal worker, more...

public, high, senior, former, local, ranking, british, important, top, minor, american

certain govt. agent,   white house bigwig,   govt. agent,   formal and informal,   of authority,   of policy,   from the state,   commissioner worker