5
new
4
modern
4
groundbreaking(adjective, old, outdated, obsolete, habitual)
3
up-to-date
3
current(adjective, modern)
3
young
2
fresh
2
contemporary
2
present-day
1
ultramodern
1
advanced
1
classy(adjective, style, taste, fashion)
1
future-proof
1
modern city(feature, characteristic, detail)
1
newfangled
1
present
1
recent
1
red-hot
1
refined
1
unused
11 years ago|1.2k views|share |citing 
APASmart Define. (2015). antediluvian thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/antediluvian/thesaurus/antonyms
ChicagoSmart Define. 2015. "antediluvian thesaurus" https://smartdefine.org/antediluvian/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, antediluvian thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/antediluvian/thesaurus/antonyms>.
MLASmart Define. "antediluvian thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/antediluvian/thesaurus/antonyms>