Clair.
ETYM Latin limpidus; akin to Greek lampein to shine: cf. French limpide. Related to Lamp.
(Of language) Transparently clear; easily understandable; SYN. lucid, luculent, pellucid, crystal clear, perspicuous.
Clear; transparent; pellucid.
ETYM French, from Late Lat. transparens, -entis, p. pr. of transparere to be transparent; Latin trans across, through + parere to appear. Related to Appear.
Easily understood or seen through (because of a lack of subtlety).