79 entries under essential topic. ×

1
middle(adjective, important, significant, basic)
1
substrative(adjective, important, significant, original)
1
supporting(adjective, important, significant, original)
1
sustaining(adjective, important, significant, original)
1
theoretical(adjective, important, significant, original)
0
bottom line(expression, important, significant, basic)
0
categorical(adjective, fundamental, supreme)
0
empyreal(adjective, fundamental, supreme)
0
empyrean(adjective, fundamental, supreme)
0
max(adjective, fundamental, supreme)
0
maxi(adjective, fundamental, supreme)
0
needful(adjective, original, basic, fundamental)
0
sublime(adjective, fine, important, significant, grand)
0
towering(adjective, fundamental, supreme)
0
transcendental(adjective, fundamental, supreme)
0
unequalable(adjective, fundamental, supreme)
0
unmatchable(adjective, fundamental, supreme)
0
unsurpassable(adjective, fundamental, supreme)
0
utmost(adjective, top, fundamental, supreme)
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APASmart Define. (2016). primary thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/primary/thesaurus/synonyms
ChicagoSmart Define. 2016. "primary thesaurus" https://smartdefine.org/primary/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, primary thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/primary/thesaurus/synonyms>.
MLASmart Define. "primary thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/primary/thesaurus/synonyms>