lucid

lucid adjective apparent, articulate, certain, clear, clear-cut, clear-thinking, comprehending, comprehensible, crystalline, discerning, discriminating, distinct, effulgent, evident, explicit, express, fulgid, illuminated, illumined, intelligible, limpid, lucent, lucidus, luculent, manifest, nitid, obvious, overt, palpable, patent, pellucid, perceptive, perspicacious, perspicuous, plain, pronounced, rational, refulgent, responsible, sagacious, sage, sane, sensible, simple, sober, sound, straightforward, transparent, unambiguous, undeniable, understandable, understood, undisguised, unequivocal, unquestionable

---

See also: clear, cognizable, coherent, comprehensible, distinct, evident, explicit, manifest, normal, obvious, palpable, pellucid, rational, reasonable, sane, unambiguous, unmistakable