95 entries under original topic. ×

1
fundamental(adjective, simple, rough, head, beginning)
1
hackneyed(last, past, venerable, outdated)
1
head(adjective, beginning, opening, prime)
1
headmost(adjective, head, beginning, opening)
1
inceptive(adjective, head, beginning, opening)
1
initiatory(adjective, beginning, opening, first)
1
key(adjective, head, beginning, opening)
1
lead off(expression, adjective, head, beginning)
1
leading(adjective, head, beginning, prime)
1
least(adjective, head, beginning, opening)
1
moth-eaten(last, old, venerable, outdated)
1
numero uno(expression, adjective, head, beginning)
1
obsolete(old, venerable, antique, archaic)
1
old-fashioned(old, venerable, outdated, antique)
1
old-time(last, past, primitive, venerable)
1
oldfangled(last, past, primitive, venerable)
1
out-of-date(old, venerable, antique, archaic)
1
outdated(last, previous, venerable, other)
1
outmoded(old, venerable, obsolete, antique)
1
premier(adjective, head, beginning, opening)
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APASmart Define. (2016). early thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/early/thesaurus/synonyms
ChicagoSmart Define. 2016. "early thesaurus" https://smartdefine.org/early/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, early thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/early/thesaurus/synonyms>.
MLASmart Define. "early thesaurus" 29 February 2016. Web. 26 September 2026. <https://smartdefine.org/early/thesaurus/synonyms>