31 entries under initial topic. ×

4
aboriginal(adjective, beginning, authentic, first, previous)
4
beginning(adjective, beginning, opening, original, authentic)
4
embryonic(adjective, slight, beginning, original, limited)
4
introductory(adjective, beginning, opening, original, authentic)
4
primeval(adjective, beginning, authentic, first, previous)
3
early(adjective, beginning, opening, original, authentic)
3
fundamental(beginning, opening, original, first, primary)
3
inceptive(adjective, beginning, opening, original, authentic)
2
autochthonous(authentic, first, previous, earliest)
2
commencing(adjective, beginning, opening, original, authentic)
2
elementary(beginning, opening, original, first, previous)
2
first(adjective, beginning, opening, original, primary)
2
primary(original, first, previous, early)
2
prime(first, previous)
2
primitive(first, previous)
2
primordial(adjective, beginning, first, previous)
2
rudimental(authentic, first, previous, earliest)
2
rudimentary(first, previous)
2
starting(adjective, beginning, authentic, first, previous)
1
earliest(beginning, opening, original, authentic, primary)
<12>
10 years ago|10k views|share |citing 
APASmart Define. (2016). infant thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/infant/thesaurus/synonyms
ChicagoSmart Define. 2016. "infant thesaurus" https://smartdefine.org/infant/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, infant thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/infant/thesaurus/synonyms>.
MLASmart Define. "infant thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/infant/thesaurus/synonyms>