308 entries under straightforward topic. ×

7
pronounced(adjective, clear, see, sharp, bright)
7
rude(adjective, poor, blunt, incomplete)
7
vanilla(adjective, dull, weak, simple, flat)
7
vivid(adjective, clear, bright, exact)
7
workaday(adjective, simple, pure, common, ordinary)
6
categorical(adjective, clear, open, flat, honest)
6
crystalline(adjective, clear, simple, precise)
6
essential(adjective, simple, pure, basic)
6
folksy(adjective, open, simple, easy, clean)
6
luminous(adjective, clear, obvious, articulate)
6
mild(adjective, calm, dull, quiet, mean)
6
precise(adjective, calm, clear, smooth, right)
6
real(adjective, good, open, direct, free)
6
regular(adjective, calm, quiet, open, smooth)
6
restrained(adjective, calm, simple, sensible, pure)
6
undeniable(adjective, clear, simple, firm, true)
6
unrefined(adjective, simple, common, natural, usual)
5
abrupt(adjective, honest, blunt, explicit)
5
childlike(adjective, open, simple, easy, honest)
5
crude(adjective, weak, simple, poor, common)
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APASmart Define. (2016). plain thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/plain/thesaurus/synonyms
ChicagoSmart Define. 2016. "plain thesaurus" https://smartdefine.org/plain/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, plain thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/plain/thesaurus/synonyms>.
MLASmart Define. "plain thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/plain/thesaurus/synonyms>