50 entries under central topic. ×

2
first(adjective, rough, important, significant, original)
2
important(adjective, significant, original, essential, basic)
2
inborn(adjective, essential, basic, absolute, fundamental)
2
innate(adjective, essential, basic, absolute, fundamental)
2
material(adjective, essential, basic, absolute, fundamental)
2
substratal(adjective, simple, plain, important, significant)
1
connate(adjective, essential, basic, absolute, fundamental)
1
deep-seated(adjective, original, essential, basic, absolute)
1
inbred(adjective, essential, basic, absolute, fundamental)
1
leading(adjective, top, essential, prime, vital)
1
major(adjective, important, significant, original, essential)
1
meat and potatoes(expression, adjective, idiom, simple, plain)
1
nitty-gritty(adjective, original, basic, absolute, fundamental)
1
nub(adjective, original, basic, absolute, fundamental)
1
paramount(adjective, important, significant, original, essential)
1
predominant(adjective, essential, main)
0
absolute(adjective, basic, fundamental, key)
0
cold(adjective, basic, absolute, fundamental, key)
0
complete(adjective, basic, absolute, fundamental, key)
0
controlling(adjective, essential, main)
11 years ago|8.4k views|share |citing 
APASmart Define. (2015). underlying thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/underlying/thesaurus/synonyms
ChicagoSmart Define. 2015. "underlying thesaurus" https://smartdefine.org/underlying/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, underlying thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/underlying/thesaurus/synonyms>.
MLASmart Define. "underlying thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/underlying/thesaurus/synonyms>