1
nitty-gritty(adjective, original, basic, absolute, fundamental)
1
nub(adjective, original, basic, absolute, fundamental)
1
nuclear(material, natural, basic, living, functional)
1
number one(adjective, lead, head, master, boss)
1
of the essence(expression, idiom)
1
paramount(important, original, serious, basic, prime)
1
plasmic(material, natural, basic, living, functional)
1
prefatory(simple, straightforward, basic, uncomplicated)
1
pregnant
1
preliminary(simple, straightforward, basic, uncomplicated)
1
premier(adjective, lead, head, master, boss)
1
premiere(adjective, lead, head, master, boss)
1
primeval
1
primo(simple, straightforward, basic, uncomplicated)
1
pristine
1
protogenic
1
pure(adjective, pure)
1
purebred(adjective, pure)
1
requisite(important, original, essential, basic, vital)
1
rock-bottom(base, last)
11 years ago|5.3k views|share |citing 
APASmart Define. (2015). basal thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/basal/thesaurus/synonyms
ChicagoSmart Define. 2015. "basal thesaurus" https://smartdefine.org/basal/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, basal thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/basal/thesaurus/synonyms>.
MLASmart Define. "basal thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/basal/thesaurus/synonyms>