THESAURUS
comprehensible
appreciable, apprehensible, articulate, ascertainable, cognizable, conceivable, discernible, discoverable, distinguishable, easily understood, easy to understand, exoteric, fathomable, graspable, intelligible, knowable, lucid, luminous, penetrable, perceptible, plumbable, prehensible, readable, recognizable, scrutable, seizable, understandable