Similar word to classicality:

candor, chastity, clarity, classicality, clean lines, clearness, directness, ease, easiness, elementariness, guilelessness, homogeneity, ingenuousness, innocence, integrity, lack of adornment, modesty, monotony, naiveté, naturalness, obviousness, openness, plainness, primitiveness, purity, restraint, severity, singleness, sophistication artlessness, straightforwardness, uniformity, unity