(n.) The quality or state of being lucid.

Atticism ESP admission of light appropriateness balance chasteness chastity clairsentience clairvoyance clarity classicalism classicism clear-cutness clearness coherence comeliness comprehensibility connectedness consistency contact with reality correctness crystal-clearness crystallinity definition diaphaneity diaphanousness dignity directness discrimination distinction distinctness ease elegance elegancy explicitness extrasensory perception felicitousness felicity filminess finish fittingness flow flowing periods fluency foresight gauziness glassiness glasslikeness good taste gossameriness grace gracefulness gracility healthy mind insight intelligibility intuition lightness limpidity lucence lucency lucid interval luminosity luminousness marbles mental balance mental equilibrium mental health mental hygiene mental poise mind naturalness neatness nonopacity normalcy normality normalness pellucidity perspicuity plain English plain speech plain style plainness polish premonition propriety psychometry purity rationality reason reasonableness refinement restraint right mind sanemindedness saneness sanity second sight seemliness senses sheerness show-through simplicity sixth sense smoothness sober senses sobriety sound mind soundness soundness of mind straightforwardness structure taste tastefulness terseness thinness translucence translucency translucidity transmission of light transparence transparency transpicuity transpicuousness unadorned style unaffectedness unambiguousness uncloudedness understandability unequivocalness unmistakableness vitreosity vitreousness vitrescence wholesomeness wit