61 entries under simple topic. ×

32
plain(adjective, calm, clear, easy)
24
intelligible(adjective, quiet, clear, easy)
24
understandable(adjective, clear, sharp, plain)
18
comprehensible(adjective, clear, sharp, definite)
16
obvious(adjective, clear, sound, reasonable)
16
unambiguous(adjective, clear, sharp, plain)
13
evident(adjective, clear, sharp, straightforward)
13
pellucid(adjective, clear, touch, pleasant)
13
unmistakable(adjective, quiet, clear, easy)
9
unequivocal(adjective, clear, sharp, plain)
8
lucent(adjective, clear, sharp, bright)
8
manifest(adjective, clear, sharp, definite)
8
straightforward(adjective, clear, easy, sharp)
7
definite(adjective, clear, sharp, bright)
6
legible(adjective, clear, easy, sharp)
5
apparent(adjective, clear, sharp, definite)
5
apprehensible(adjective, sharp, distinct, obvious)
5
transpicuous(adjective, clear, sharp, obvious)
4
crystal(adjective, clear, sharp, brilliant)
4
express(verb, clear, sharp, plain)
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APASmart Define. (2016). lucid thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/lucid/thesaurus/synonyms
ChicagoSmart Define. 2016. "lucid thesaurus" https://smartdefine.org/lucid/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, lucid thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/lucid/thesaurus/synonyms>.
MLASmart Define. "lucid thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/lucid/thesaurus/synonyms>