72 entries under plain topic. ×

5
literal(adjective, true, straightforward, straight)
5
natural(adjective, simple, clean, pure)
5
thoroughgoing(adjective, complete, total, pure)
5
unadorned(adjective, simple, clean, pure)
5
unmingled(adjective, strong, simple, clean)
4
fair(adjective, simple, clean, wholesome)
4
honest(pure, true, straightforward, straight)
4
uncombined(adjective, simple, clean, pure)
4
unembellished(adjective, simple, clean, pure)
3
austere(adjective, simple, clean, pure)
3
mere(adjective, simple, clean, pure)
3
uncluttered(adjective, simple, clean, pure)
3
uncompounded(adjective, simple, clean, pure)
2
bright(adjective, simple, clean, fresh)
2
classic(adjective, simple, clean, pure)
2
kosher(adjective, good, sound, simple, right)
2
out-and-out(adjective, complete, simple, clean, total)
2
sincere(true, straightforward, straight, real)
2
unaffected(adjective, simple, clean, pure)
2
undecorated(adjective, simple, clean, pure)
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APASmart Define. (2015). unadulterated thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unadulterated/thesaurus/synonyms
ChicagoSmart Define. 2015. "unadulterated thesaurus" https://smartdefine.org/unadulterated/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unadulterated thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unadulterated/thesaurus/synonyms>.
MLASmart Define. "unadulterated thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/unadulterated/thesaurus/synonyms>