235 entries under adjective topic. ×

20
important(significant, original, essential, critical)
19
primary(lead, important, head, significant)
19
middle(noun, adverb, mean, edge)
18
key(lead, important, head, master)
18
cardinal(noun, lead, important, head)
17
focal(main, private, mental, focus)
16
fundamental(important, significant, original, essential)
16
essential(important, significant, original, basic)
16
chief(lead, important, head, significant)
16
median(noun, mean, edge, main)
15
interior(government, main, private, mental)
15
halfway(noun, adverb, mean, complete)
15
main(lead, important, head, significant)
15
mid(adverb, mean, edge, main)
15
midway(noun, adverb, mean, edge)
15
pivotal(important, critical, vital, main)
15
prime(lead, important, head, significant)
14
inner(mean, remote, main, private)
14
internal(private, mental, middle, inner)
14
principal(lead, important, head, significant)
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APASmart Define. (2015). central thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/central/thesaurus/synonyms
ChicagoSmart Define. 2015. "central thesaurus" https://smartdefine.org/central/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, central thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/central/thesaurus/synonyms>.
MLASmart Define. "central thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/central/thesaurus/synonyms>