123 entries under basic topic. ×

3
crucial(adjective, important, significant, original, essential)
3
embryonic(adjective, simple, beginning, opening, original)
3
necessary(adjective, easy, important, significant, original)
3
primordial(adjective, important, head, significant, beginning)
3
vital(adjective, top, important, significant, original)
2
constitutive(important, significant, original, vital)
2
critical(adjective, original, essential, fundamental)
2
deep(adjective, original, primary)
2
early(adjective, simple, head, beginning, opening)
2
important(adjective, significant, original, vital)
2
indispensable(adjective, characteristic, important, significant, natural)
2
major(important, significant, original, vital)
2
opening(adjective, head, beginning, original)
2
substratal(adjective, simple, plain, important, significant)
1
ABCs(adjective, simple, straightforward, undemanding)
1
absolute(adjective, simple, clean, plain, pure)
1
axiological(important, significant, original, vital)
1
axiomatic(important, significant, original, vital)
1
bottom-line(adjective, important, significant, original, essential)
1
deep-seated(adjective, characteristic, original, essential)
11 years ago|15k views|share |citing 
APASmart Define. (2015). elementary thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/elementary/thesaurus/synonyms
ChicagoSmart Define. 2015. "elementary thesaurus" https://smartdefine.org/elementary/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, elementary thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/elementary/thesaurus/synonyms>.
MLASmart Define. "elementary thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/elementary/thesaurus/synonyms>