2
abecedarian(simple, basic, fundamental, elementary)
2
abortive(adjective, nonpreparation)
2
autochthonous(authentic, first, previous, initial, earliest)
2
basal(simple, basic, fundamental, elementary)
2
basic(simple, beginning, opening, original, fundamental)
2
commencing(adjective, beginning, opening, original, authentic)
2
creative(adjective, rational, fantastic, original, resourceful)
2
developing(adjective, unfixed, promising, initial, flowering)
2
earliest(beginning, opening, original, authentic, first)
2
elemental(simple, basic, fundamental, elementary)
2
evanescent
2
foremost(adjective, beginning, opening, original, first)
2
impalpable
2
imperceptible
2
in ovo(expression, idiom, cause)
2
in the rough(expression, idiom, nonpreparation)
2
inappreciable
2
infinitesimal
2
intangible
2
invisible
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APASmart Define. (2015). embryonic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/embryonic/thesaurus/synonyms
ChicagoSmart Define. 2015. "embryonic thesaurus" https://smartdefine.org/embryonic/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, embryonic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/embryonic/thesaurus/synonyms>.
MLASmart Define. "embryonic thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/embryonic/thesaurus/synonyms>