3
embryonic
3
morning(feature, characteristic, detail)
3
new
3
premature
3
primaeval
3
primal
3
primeval
3
primordial
3
proterozoic
3
rude
3
wee
3
young
2
Old
2
archaeozoic
2
azoic
2
busy
2
embryotic
2
inchoate
2
primitive(adjective, start)
2
proto
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APASmart Define. (2016). early thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/early/thesaurus/related
ChicagoSmart Define. 2016. "early thesaurus" https://smartdefine.org/early/thesaurus/related (accessed September 24, 2026).
HarvardSmart Define 2016, early thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/early/thesaurus/related>.
MLASmart Define. "early thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/early/thesaurus/related>