64 entries under plain topic. ×

12
transparent(adjective, clear, simple, sharp)
12
unquestionable(adjective, sharp, definite, precise)
11
definitive(adjective, set, clear, direct)
10
perspicuous(adjective, clear, simple, sharp, bright)
10
univocal(adjective, clear, certain, straightforward)
10
unqualified(adjective, clear, exact, certain)
9
decided(adjective, clear, certain, straightforward)
9
patent(adjective, clear, simple, sharp)
9
sure(adjective, clear, sound, firm)
9
understandable(adjective, clear, simple, sharp)
7
exact(adjective, set, clear, direct)
7
open(adjective, clear, honest, straight)
7
palpable(adjective, clear, simple, sharp)
7
unreserved(adjective, clear, honest, straight)
6
frank(adjective, clear, easy, honest)
6
outspoken(adjective, clear, honest, straight)
5
accurate(adjective, set, clear, direct)
5
clean-cut(adjective, set, clear, direct)
5
crystal clear(expression, adjective, clear, exact)
5
indubitable(adjective, clear, certain, sure)
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APASmart Define. (2016). unambiguous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unambiguous/thesaurus/synonyms
ChicagoSmart Define. 2016. "unambiguous thesaurus" https://smartdefine.org/unambiguous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, unambiguous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unambiguous/thesaurus/synonyms>.
MLASmart Define. "unambiguous thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/unambiguous/thesaurus/synonyms>