210 entries under straightforward topic. ×

11
smooth(adjective, clear, light, easy)
11
unadulterated(adjective, complete, clean, total, plain)
11
unmistakable(adjective, quality, clear, easy, sharp)
10
quiet(adjective, clear, light, soft, easy)
10
elemental(adjective, pure, whole, basic)
10
lowly(adjective, quiet, mean, lower, poor)
10
simple-minded(adjective, dull, ability, honest, slow)
10
slow(adjective, dull, light, easy, ability)
9
blunt(adjective, clear, hard, severe, flat)
9
commonplace(adjective, dull, mean, lower, poor)
9
familiar(adjective, plain, informal, relaxed, common)
9
forthright(adjective, direct, honest, plain, natural)
9
prosaic(adjective, mean, gentle, poor, low)
8
essential(adjective, hard, severe, rough, plain)
8
naked(adjective, dull, plain, straight)
8
obvious(adjective, clear, light, smooth, easy)
8
primary(adjective, top, pure, basic)
8
primitive(adjective, plain, violent, coarse, natural)
8
straight(adjective, adverb, clear, flat, clean)
7
folksy(adjective, open, easy, clean, honest)
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APASmart Define. (2016). simple thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/simple/thesaurus/synonyms
ChicagoSmart Define. 2016. "simple thesaurus" https://smartdefine.org/simple/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, simple thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/simple/thesaurus/synonyms>.
MLASmart Define. "simple thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/simple/thesaurus/synonyms>