1
straightforward(clear, sharp, plain, definite, obvious)
1
sure(certain, definite, obvious, distinctive, unquestionable)
1
sure thing(expression, sound, certain, true, definite)
1
transparent(clear, simple, sharp, plain, certain)
1
transpicuous(simple, sharp, distinct, understandable, well-defined)
1
true(sound, certain, definite, evident, unquestionable)
1
unadorned(adjective, simple, clean, plain, pure)
1
unadulterated(adjective, simple, clean, plain, pure)
1
unaffected(adjective, simple, clean, plain, pure)
1
unalloyed(adjective, simple, clean, plain, pure)
1
unambiguous(clear, sharp, plain, definite, obvious)
1
unanswerable(sound, certain, true, definite, unquestionable)
1
unarguable
1
unavoidable(adjective, obvious, bound, inevitable, inescapable)
1
unblended(adjective, simple, clean, plain, pure)
1
unblurred(simple, sharp, distinct, understandable, well-defined)
1
uncluttered(adjective, simple, clean, plain, pure)
1
uncombined(adjective, simple, clean, plain, pure)
1
uncompounded(adjective, simple, clean, plain, pure)
1
undecorated(adjective, simple, clean, plain, pure)
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APASmart Define. (2013). open and shut thesaurus. Retrieved September 26, 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 26, 2026).
HarvardSmart Define 2013, open and shut thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/open_and_shut/thesaurus/synonyms>.
MLASmart Define. "open and shut thesaurus" 19 May 2013. Web. 26 September 2026. <https://smartdefine.org/open_and_shut/thesaurus/synonyms>