1,116 entry under adjective topic. ×

13
everyday(mean, simple, poor, pure)
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natural(open, direct, free, simple)
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outspoken(clear, open, direct, free)
13
perceptible(visual, clear, sound, sharp)
13
unsophisticated(open, simple, easy, honest)
12
basic(clear, light, smooth, simple)
12
discreet(calm, quality, simple, soft)
12
intelligible(clear, simple, easy, sharp)
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noticeable(clear, see, obvious, visible)
12
overt(clear, open, obvious, artless)
12
spare(simple, soft, shy, meek)
12
undecorated(simple, clean, pure, ordinary)
12
unlovely(appearance, awful, beautiful, ugly)
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unmistakeable
12
unostentatious(quiet, simple, soft, reasonable)
11
bald(open, direct, simple, honest)
11
broad(clear, see, full, obvious)
11
easy(quiet, clear, open, light)
11
express(verb, clear, simple, right)
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guileless(open, direct, free, simple)
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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>