22 entries under authentic topic. ×

14
aboriginal(adjective, original, first, native)
4
primeval(adjective, original, first, previous)
3
beginning(first, previous, initial, earliest)
3
embryonic(first, previous, initial, earliest)
3
inceptive(first, previous, initial, earliest)
3
initial(first, previous, earliest)
3
pristine(first, previous, initial, earliest)
3
rudimental(first, previous, initial, earliest)
2
genuine(adjective, first, previous, initial)
2
infant(first, previous, initial, earliest)
2
introductory(first, previous, initial, earliest)
1
archetypal(first, previous, initial, earliest)
1
earliest(original, first, previous, initial)
0
commencing(first, previous, initial, earliest)
0
early(first, previous, initial, earliest)
0
first-hand(first, previous, initial, earliest)
0
opening(first, previous, initial, earliest)
0
pioneer(first, previous, initial, earliest)
0
prototypal(first, previous, initial, earliest)
0
starting(first, previous, initial, earliest)
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APASmart Define. (2015). autochthonous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/autochthonous/thesaurus/synonyms
ChicagoSmart Define. 2015. "autochthonous thesaurus" https://smartdefine.org/autochthonous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, autochthonous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/autochthonous/thesaurus/synonyms>.
MLASmart Define. "autochthonous thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/autochthonous/thesaurus/synonyms>