389 entries under simple topic. ×

8
glaring(adjective, clear, certain, straightforward)
8
humble(adjective, quiet, mean, reasonable)
8
innocent(adjective, open, easy, friendly)
8
insipid(adjective, dull, weak, flat)
8
lowly(adjective, quiet, gentle, poor)
8
matter-of-fact(adjective, open, direct, free)
8
naked(adjective, dull, tough, rational)
8
quiet(adjective, calm, light, soft)
8
recognizable(adjective, clear, sharp, common)
8
run-of-the-mill(adjective, good, dull, flat)
8
self-explanatory(adjective, quiet, clear, easy)
8
unadulterated(adjective, clean, pure, true)
8
unremarkable(adjective, good, common, ordinary)
7
average(adjective, good, mean, reasonable)
7
coherent(adjective, clear, sharp, rational)
7
fundamental(adjective, pure, straightforward, basic)
7
perfect(adjective, right, clean, big)
7
unobtrusive(adjective, calm, quiet, soft)
7
unrestrained(adjective, open, warm, loving)
7
usual(adjective, dull, flat, honest)
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APASmart Define. (2016). plain thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/plain/thesaurus/synonyms
ChicagoSmart Define. 2016. "plain thesaurus" https://smartdefine.org/plain/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, plain thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/plain/thesaurus/synonyms>.
MLASmart Define. "plain thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/plain/thesaurus/synonyms>