67 entries under plain topic. ×

22
intelligible(adjective, clear, simple, knowledge, sharp)
17
lucid(adjective, clear, simple, sharp)
16
clear(adjective, sharp, distinct, obvious)
15
distinct(adjective, clear, simple, sharp)
14
evident(adjective, clear, simple, sharp)
14
transparent(adjective, clear, simple, sharp)
13
obvious(adjective, clear, simple, sharp)
12
explicit(adjective, clear, simple, sharp)
12
unmistakable(adjective, clear, simple, sharp)
11
unambiguous(adjective, clear, simple, sharp)
10
apparent(adjective, clear, simple, sharp)
9
legible(adjective, clear, simple, easy, sharp)
9
straightforward(adjective, clear, simple, sharp)
8
patent(adjective, clear, simple, sharp)
8
perspicuous(adjective, clear, sharp, obvious)
7
accessible(adjective, clear, palpable, comprehensible)
7
knowable(adjective, simple, knowledge, sharp)
7
perceivable(adjective, clear, obvious, evident)
6
appreciable(adjective, noticeable, observable, traceable)
6
clear-cut(adjective, clear, sharp, distinct)
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APASmart Define. (2016). understandable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/understandable/thesaurus/synonyms
ChicagoSmart Define. 2016. "understandable thesaurus" https://smartdefine.org/understandable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, understandable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/understandable/thesaurus/synonyms>.
MLASmart Define. "understandable thesaurus" 31 March 2016. Web. 20 September 2026. <https://smartdefine.org/understandable/thesaurus/synonyms>