2
innocent(adjective, simple)
2
light(adjective, clear, shiny, transparent)
2
logical
2
luminous(adjective, clear, shiny, transparent, semitransparent)
2
obvious(adjective, clear, straightforward, precise, transparent)
2
straightforward(precise, unambiguous)
2
unambiguous(clear, straightforward, precise, transparent, translucent)
2
unequivocal(straightforward, precise, unambiguous)
2
well-defined(straightforward, precise, unambiguous)
1
aniline
1
artless(adjective, simple)
1
austere(adjective, simple)
1
bald(adjective, simple)
1
bare(adjective, simple)
1
bright
1
brighten
1
certain
1
childlike(adjective, simple)
1
clean-cut
1
clear as day(expression, idiom)
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APASmart Define. (2015). crystalline thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/crystalline/thesaurus/synonyms
ChicagoSmart Define. 2015. "crystalline thesaurus" https://smartdefine.org/crystalline/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, crystalline thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/crystalline/thesaurus/synonyms>.
MLASmart Define. "crystalline thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/crystalline/thesaurus/synonyms>