58 entries under understandable topic. ×

8
straightforward(adjective, clear, simple, easy, sharp)
6
legible(adjective, clear, simple, easy, sharp)
5
apprehensible(adjective, simple, sharp, distinct, obvious)
5
transpicuous(adjective, clear, simple, sharp, obvious)
4
comprehendible(adjective, obvious, articulate, evident)
4
express(verb, clear, simple, sharp, plain)
4
graspable(adjective, simple, sharp, distinct, obvious)
4
knowable(adjective, simple, sharp, distinct, obvious)
4
palpable(adjective, simple, sharp, distinct, obvious)
4
patent(adjective, clear, simple, sharp, plain)
4
unquestionable(adjective, simple, sharp, distinct)
3
indisputable
3
open(adjective, clear, plain, straightforward, distinct)
3
perceptible(adjective, clear, sharp, distinct, obvious)
3
precise(adjective, clear, simple, sharp, plain)
3
self-explanatory(adjective, quiet, clear, smooth, easy)
3
sharp(adjective, clear, simple, bright, intense)
2
certain(adjective, clear, plain, obvious, unequivocal)
2
incontrovertible(simple, sharp, distinct, well-defined)
2
indubitable(adjective, straightforward, precise, unambiguous)
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APASmart Define. (2016). lucid thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/lucid/thesaurus/synonyms
ChicagoSmart Define. 2016. "lucid thesaurus" https://smartdefine.org/lucid/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, lucid thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/lucid/thesaurus/synonyms>.
MLASmart Define. "lucid thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/lucid/thesaurus/synonyms>