Among the currently most popular synonyms for lucid are: well balanced, transparent, coherent, effulgent, gleaming, perspicuous, sober, compos mentis, evident, distinct, lucent, brilliant, graphic, obvious, explicit, glowing, clear-cut, simple, eloquent, in one's right mind, lustrous, clearheaded, sensible, comprehensible, unambiguous, rational, lambent, luminescent, dazzling, intelligible, vivid, straightforward, clear-headed, radiant, understandable, right-minded, balanced, all there, sharp, direct, cogent, articulate, refulgent, clear-sighted, sane, crystal clear, communicative.