1,116 entry under adjective topic. ×

6
uncluttered(simple, sharp, clean, pure)
6
undeniable(clear, simple, firm, true)
6
unmingled(simple, clean, genuine, wholesome)
6
unmitigated(big, limited)
6
unpatterned
6
unpleasing(appearance, ugly, aroused negative)
6
unpretending(soft, shy, meek, frugal)
6
unrefined(simple, common, natural, usual)
6
utter(big, limited)
5
abrupt(honest, straightforward, blunt, explicit)
5
appreciable(significant, substantial, obvious, evident)
5
arrant(big, limited)
5
bold(clear, open, free, bright)
5
childlike(open, simple, easy, honest)
5
coarse(common, usual, immoral, shameful)
5
consistent(calm, smooth, flat, level)
5
crisp(exact, specific, explicit, intelligible)
5
crude(weak, simple, poor, common)
5
decent(good, open, soft, honest)
5
detectable(clear, distinct, loud, obvious)
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APASmart Define. (2016). plain thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/plain/thesaurus/synonyms
ChicagoSmart Define. 2016. "plain thesaurus" https://smartdefine.org/plain/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, plain thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/plain/thesaurus/synonyms>.
MLASmart Define. "plain thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/plain/thesaurus/synonyms>