official
of-fi-cial
noun
A person holding a position of authority, especially in public service or an organisation.
"A government official addressed the press."
adjective
Authorised or approved by a person or body in authority; formal.
"We received official confirmation of the event."
Thesaurus
Synonyms: constituted, established, formalized, ex officio, formal, formalised, licensed, semiofficial, licenced, accredited, commissioned, regular
Antonyms: unofficial