121 entries under simple topic. ×

50
fundamental(noun, adjective, characteristic, drop, part)
49
essential(noun, adjective, characteristic, drop, part)
36
primary(adjective, body, plain, base)
33
elementary(adjective, characteristic, clear, light, start)
22
elemental(adjective, body, plain, material)
20
underlying(adjective, plain, base, important)
15
original(adjective, characteristic, body, plain)
13
rudimentary(adjective, hard, start, plain)
12
basal(adjective, body, start, plain)
12
natural(adjective, characteristic, body, rough)
12
plain(adjective, clear, light, smooth)
11
introductory(adjective, start, plain, head)
11
primitive(adjective, body, plain, material)
10
bare(adjective, hard, severe, plain)
10
initial(adjective, start, plain, head)
10
unadorned(adjective, hard, severe, plain)
9
stark(adjective, direct, severe, plain)
7
austere(adjective, hard, severe, plain)
6
foundational(adjective, base, pure, important)
6
pure(adjective, pure, theoretical, unadorned)
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APASmart Define. (2015). basic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/basic/thesaurus/synonyms
ChicagoSmart Define. 2015. "basic thesaurus" https://smartdefine.org/basic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, basic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/basic/thesaurus/synonyms>.
MLASmart Define. "basic thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/basic/thesaurus/synonyms>