7
exact(adjective, correct, stiff, affected, neat)
7
literary(adjective, books)
7
normal(adjective, common, ordinary, usual, regular)
7
routine(adjective, common, ordinary, usual, regular)
7
strict(adjective, established, conformity, orderly)
7
systematic(adjective, proper, neat, established, organized)
6
approved(adjective, established, orderly)
6
dressy(adjective, plain, elegant, fashionable)
6
lawful(adjective, established, orderly)
6
legal(adjective, established, orderly)
6
nice(adjective, good, correct, proper, modest)
6
orderly
6
orthodox(good, correct, appropriate, proper, conformity)
6
sedate(adjective, good, quiet, gentle, sober)
6
seemly(adjective, good, correct, grand, stiff)
6
strait-laced
6
traditional(adjective, common, ordinary, usual, regular)
5
chill(adjective, indifferent, unfriendly, aloof, remote)
5
cold(adjective, close, quiet, strong, cool)
5
cool(adjective, close, quiet, cold, detached)
10 years ago|20k views|share |citing 
APASmart Define. (2016). formal thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/formal/thesaurus/synonyms
ChicagoSmart Define. 2016. "formal thesaurus" https://smartdefine.org/formal/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, formal thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/formal/thesaurus/synonyms>.
MLASmart Define. "formal thesaurus" 10 March 2016. Web. 23 September 2026. <https://smartdefine.org/formal/thesaurus/synonyms>