100 entries under clean topic. ×

62
plain(adjective, mean, clear, light, smooth)
38
naive(adjective, dull, gentle, honest)
26
clear(adjective, quality, light, complete, smooth)
26
pure(adjective, clear, complete, right, bright)
24
unsophisticated(adjective, honest, plain, pure)
21
innocent(noun, adjective, gentle, honest)
20
unaffected(adjective, open, easy, honest)
18
natural(adjective, open, easy, honest)
16
artless(adjective, easy, honest, plain)
13
ingenuous(adjective, honest, plain, pure)
13
lucid(adjective, quality, clear, easy, sharp)
11
absolute(adjective, complete, flat, limit)
11
green(adjective, honest, plain, informal)
11
sheer(adjective, hard, complete, right, severe)
11
unadulterated(adjective, complete, total, plain)
10
unalloyed(adjective, separate, complete, total)
10
unmixed(adjective, separate, complete, pure)
8
straight(adjective, adverb, clear, flat)
7
classic(adjective, characteristic, plain, modest)
7
folksy(adjective, open, easy, honest)
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APASmart Define. (2016). simple thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/simple/thesaurus/synonyms
ChicagoSmart Define. 2016. "simple thesaurus" https://smartdefine.org/simple/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, simple thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/simple/thesaurus/synonyms>.
MLASmart Define. "simple thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/simple/thesaurus/synonyms>