1,116 entry under adjective topic. ×

16
ugly(appearance, nasty, unpleasant, common)
16
visible(clear, see, exact, significant)
15
commonplace(good, dull, mean, simple)
15
ingenuous(good, open, direct, free)
15
level(noun, nature, characteristic, quiet)
15
transparent(clear, open, direct, free)
15
unattractive(appearance, unpleasant, awful, common)
14
austere(simple, clean, harsh, pure)
14
clear-cut(clear, see, simple, sharp)
14
comprehensible(clear, simple, sharp, distinct)
14
downright(clear, open, direct, free)
14
dull(weak, simple, tough, flat)
14
forthright(good, open, light, direct)
14
naive(open, direct, free, simple)
14
sheer(clear, right, clean, big)
14
unassuming(quiet, mean, simple, soft)
13
absolute(clear, flat, clean, firm)
13
dry(dull, quality, simple, tough)
13
elementary(clear, light, smooth, simple)
13
even(adverb, characteristic, calm, quiet)
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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>