10
formal(adjective, correct, stiff, affected, established)
6
stiff(adjective, standoffish, formal, ceremonious)
6
ceremonious(adjective, ritual, formal)
6
official
6
proper
5
nice
5
prim(adjective, particular, fussy)
4
ceremonial(adjective, ritual, formal)
3
conventional
3
dressy(adjective, fashionable, formal)
3
nominal
3
prescribed
3
punctilious(adjective, careful, finicky)
3
regular
3
rigid
3
starchy
2
magic
2
stuffy(adjective, prim)
1
black-tie
1
bohemian
<12345…10>
10 years ago|2.4k views|share |citing 
APASmart Define. (2016). informal thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/informal/thesaurus/antonyms
ChicagoSmart Define. 2016. "informal thesaurus" https://smartdefine.org/informal/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, informal thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/informal/thesaurus/antonyms>.
MLASmart Define. "informal thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/informal/thesaurus/antonyms>