0
prior
0
prototypal(authentic, first, previous, initial)
0
qualifying
0
readying
0
rudimental(authentic, first, previous, initial)
0
rudimentary(simple, original, basic, first, unsophisticated)
0
senior
0
test
0
trial
0
underived(simple, basic, authentic, first, unsophisticated)
0
very old(expression, idiom)
10 years ago|5k views|share |citing 
APASmart Define. (2016). earliest thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/earliest/thesaurus/synonyms
ChicagoSmart Define. 2016. "earliest thesaurus" https://smartdefine.org/earliest/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, earliest thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/earliest/thesaurus/synonyms>.
MLASmart Define. "earliest thesaurus" 13 March 2016. Web. 22 September 2026. <https://smartdefine.org/earliest/thesaurus/synonyms>