139 entries under original topic. ×

2
old-time(adjective, last, odd, old)
2
once(last, old, past, venerable)
2
onetime(last, past, venerable, outdated)
2
principal(adjective, body, material, important, significant)
2
quondam(last, old, past, venerable)
2
root(adjective, basic, fundamental, primary)
2
sometime(last, old, past, venerable)
2
substratal(adjective, simple, plain, important, significant)
2
superannuated(adjective, odd, old, past)
2
unfashionable(adjective, last, odd, old)
2
venerable(adjective, old, past, outdated)
2
vital(adjective, body, material, important, significant)
1
age-old(last, past, venerable, outdated)
1
ahead(adjective, head, beginning, opening)
1
anterior(adjective, head, beginning, opening)
1
axiological(adjective, important, significant, essential)
1
axiomatic(important, significant, basic, vital)
1
bottom(adjective, important, significant, essential)
1
bottom-line(adjective, important, significant, essential)
1
cast-off(last, past, venerable, outdated)
11 years ago|19k views|share |citing 
APASmart Define. (2015). primitive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/primitive/thesaurus/synonyms
ChicagoSmart Define. 2015. "primitive thesaurus" https://smartdefine.org/primitive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, primitive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/primitive/thesaurus/synonyms>.
MLASmart Define. "primitive thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/primitive/thesaurus/synonyms>