3
Neolithic Age
3
fossilized
3
historical(adjective, time, past, history, or belonging from history)
3
medieval
2
dated
2
fossilize
1
New Stone Age
1
kaput
1
neolithic era(period, age, era)
1
timeworn
0
antiquarian
0
demoded
0
era
0
demode
0
moribund
0
mossy
0
moth-eaten
0
noachian
0
obsolete
0
out-of-date
<12>
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APASmart Define. (2015). neolithic thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/neolithic/thesaurus/synonyms
ChicagoSmart Define. 2015. "neolithic thesaurus" https://smartdefine.org/neolithic/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, neolithic thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/neolithic/thesaurus/synonyms>.
MLASmart Define. "neolithic thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/neolithic/thesaurus/synonyms>