23
formal(adjective, proper, ordinary, usual, normal)
22
manager(noun, person, authority, head, individual)
21
authentic(adjective, honest, true, straight, definite)
20
authoritative(adjective, good, sound, correct, right)
20
established(adjective, sound, proper, customary, accepted)
18
authorized(adjective, fair, government, valid, legal)
17
sanctioned(adjective, sound, proper, true, accepted)
16
executive(noun, adjective, person, authority, head)
16
functionary(noun, person, director, custodian)
16
legitimate(adjective, sound, right, proper, straight)
16
officer(noun, person, authority, head, boss)
15
proper(adjective, sound, customary, accepted, traditional)
14
administrator(noun, person, boss, chief, over)
14
director(noun, person, over, administrator)
13
standard(adjective, true, regular, reliable, approved)
13
endorsed(adjective, accepted, legal, legitimate, permitted)
12
true(adjective, sound, honest, proper, straight)
11
valid(adjective, right, honest, true, straight)
11
legal(adjective, good, sound, correct, right)
10
approved(adjective, sound, proper, accepted, traditional)
<1234510>
11 years ago|15k views|share |citing 
APASmart Define. (2015). official thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/official/thesaurus/synonyms
ChicagoSmart Define. 2015. "official thesaurus" https://smartdefine.org/official/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, official thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/official/thesaurus/synonyms>.
MLASmart Define. "official thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/official/thesaurus/synonyms>