What is another word for "lucidity"?

Roget's Thesaurus (1911) lists these synonyms for "lucidity": become, bring, clarity, clear, come, crystal, crystalline, diaphaneity, diaphanous, down, fluorescence, glass, glassy, hyaline, hyaloid, interval, light, limpid, limpidity, lucid, lymph, medium, mind, pellucid, pellucidity, possession, rational, rationality, reason, reasonable, relucent, render, retain, right, sane, sanity, self-possessed, serene, sober, sober-minded.