Synonyms|140Antonyms|4|Broader|0Narrower|0Related|115
1
initial
1
primeval(adjective, aged)
1
tritest
0
absolutely
0
actually
0
almost unheard of(verb, phrasal verb, infrequency)
0
also
0
awfully
0
badly
0
basically
0
beginning
0
bigger
0
bigness
0
brilliance
0
bulk
0
bulkiness
0
certainly
0
chiefly
0
completely
0
correctly
For more, visit Oldest on Power Thesaurus
10 years ago|2.6k views|share |citing 
APASmart Define. (2015). oldest thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/oldest/thesaurus/synonyms
ChicagoSmart Define. 2015. "oldest thesaurus" https://smartdefine.org/oldest/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, oldest thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/oldest/thesaurus/synonyms>.
MLASmart Define. "oldest thesaurus" 31 December 2015. Web. 22 September 2026. <https://smartdefine.org/oldest/thesaurus/synonyms>