34 entries under noun topic. ×

15
antique(adjective, ancient)
8
trace(verb, time, remains)
7
dodo
7
fogy(new, square)
7
relic(verb, time, remains)
6
fogey
6
impression(verb, time, remains)
4
fuddy-duddy
4
square(slang, new)
4
petrifaction(verb, time, remains)
4
specimen(verb, time, remains)
3
stick-in-the-mud(person, informal, new)
3
deposit
3
eolith
3
mossback
3
neolith
3
paleolith
3
reconstruction(verb, time, remains)
3
skeleton(verb, time, remains)
2
conservative
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APASmart Define. (2015). fossil thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/fossil/thesaurus/synonyms
ChicagoSmart Define. 2015. "fossil thesaurus" https://smartdefine.org/fossil/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, fossil thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/fossil/thesaurus/synonyms>.
MLASmart Define. "fossil thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/fossil/thesaurus/synonyms>