4
unstylish
3
archaic(adjective, old)
3
passe
3
aforementioned
3
neolithic(adjective, antique, ancient, pristine)
2
as mentioned before
2
musty
2
out-of-date
2
outworn
2
primitive(adjective, original, crude, ancient, barbaric)
2
superannuated
2
venerable
1
olden
1
primal
1
old style
0
age-old
0
conservative
0
medieval(adjective, old, having)
0
quaint
0
aged
10 years ago|3.7k views|share |citing 
APASmart Define. (2016). modern thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/modern/thesaurus/antonyms
ChicagoSmart Define. 2016. "modern thesaurus" https://smartdefine.org/modern/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, modern thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/modern/thesaurus/antonyms>.
MLASmart Define. "modern thesaurus" 17 February 2016. Web. 25 September 2026. <https://smartdefine.org/modern/thesaurus/antonyms>