1
endogenously(adverb, how, when, where)
1
enter(verb, action, doing, affair)
1
experimentally(adverb, how, when, where)
1
firstling(noun, start, begin, prime, first)
1
firsts(noun, start, begin, prime, first)
1
found(adjective, feature, quality, which)
1
foundationally(adverb, how, when, where)
1
frontly(adverb, how, when, where)
1
inaugurally(adverb, how, when, where)
1
inceptively(adverb, how, when, where)
1
incipiently(adverb, how, when, where)
1
indigenously(adverb, how, when, where)
1
initial(adjective, feature, quality, which)
1
initials(noun, start, begin, prime, first)
1
initiate(adjective, feature, quality, which)
1
initiation(noun, start, begin, prime, first)
1
initiatively(adverb, how, when, where)
1
initiatorily(adverb, how, when, where)
1
introductorily(adverb, how, when, where)
1
kickoff(noun, start, begin, prime, first)
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APASmart Define. (2015). firstly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/firstly/thesaurus/related
ChicagoSmart Define. 2015. "firstly thesaurus" https://smartdefine.org/firstly/thesaurus/related (accessed September 21, 2026).
HarvardSmart Define 2015, firstly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/firstly/thesaurus/related>.
MLASmart Define. "firstly thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/firstly/thesaurus/related>