78 entries under plain topic. ×

1
unelaborate(adjective, simple, clean, pure)
1
unembellished(adjective, simple, clean, pure)
1
unequivocal(adjective, clear, simple, sharp)
1
unfussy(adjective, simple, clean, pure)
1
univocal(certain, straightforward, definite, obvious)
1
unmistakable(adjective, clear, sharp, certain)
1
unmitigated(adjective, simple, clean, pure)
1
unmixed(adjective, simple, clean, pure)
1
unornamented(adjective, simple, clean, pure)
1
unostentatious(adjective, simple, clean, pure)
1
unpretentious(adjective, simple, clean, pure)
1
unqualified(adjective, simple, clean, pure)
1
unquestionable(simple, sharp, certain, definite)
1
vanilla(adjective, simple, clean, pure)
0
literal(adjective, straightforward, straight)
0
ordinary(adjective, clear, simple, modest)
0
undisguised(adjective, clear, simple, clean)
0
unvarnished(adjective, honest)
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APASmart Define. (2013). open and shut thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/open_and_shut/thesaurus/synonyms
ChicagoSmart Define. 2013. "open and shut thesaurus" https://smartdefine.org/open_and_shut/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2013, open and shut thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/open_and_shut/thesaurus/synonyms>.
MLASmart Define. "open and shut thesaurus" 19 May 2013. Web. 27 September 2026. <https://smartdefine.org/open_and_shut/thesaurus/synonyms>