Synonyms and related words :
clarity, clear-cutness, clearness, coherence, connectedness, consistency, crystallinity, definition, directness, distinctness, explicitness, limpidity, lucidity, pellucidity, perspicuity, plain English, plain style, plainness, simplicity, straightforwardness, structure, transparency, transpicuity, unadorned style, unambiguousness, unequivocalness, unmistakableness