1
outdated
1
outmoded
1
platitudinous
1
primate
1
square
1
stale
1
stereotyped
1
stock
1
threadbare
1
timeworn
1
trite
1
unfashionable
1
unoriginal
1
warmed-over
1
well-known
1
well-worn
1
worn
0
antiquated
0
behind the times(adjective, current)
0
biweekly
11 years ago|328 views|share |citing 
APASmart Define. (2015). back-number thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/back-number/thesaurus/synonyms
ChicagoSmart Define. 2015. "back-number thesaurus" https://smartdefine.org/back-number/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, back-number thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/back-number/thesaurus/synonyms>.
MLASmart Define. "back-number thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/back-number/thesaurus/synonyms>