Rareness(n.) The state or quality of being rare.
Thesaurus Entries
Prospero, airy nothing, airy texture, appearance, ascent, attenuation, bodilessness, bounce, breeziness, bubbliness, buoyancy, carefreeness, chirpiness, daintiness, debonairness, delicacy, delusiveness, diaphanousness, dilutedness, dilution, downiness, draftiness, ethereality, exiguity, exility, fallaciousness, false appearance, false light, false show, falseness, fineness, flimsiness, floatability, fluffiness, foaminess, frailty, frothiness, gauziness, gentleness, gossameriness, gracility, gustiness, idealization, illusionism, illusionist, illusiveness, immateriality, impalpability, imponderability, incorporeality, insolidity, insubstantiality, intangibility, jauntiness, laciness, lack of weight, levitation, levity, light heart, lightheartedness, lightness, lightsomeness, magic, magic act, magic show, magician, mistiness, paperiness, perkiness, pertness, prestidigitation, rareness, rarity, resilience, seeming, semblance, show, simulacrum, sleight of hand, slenderness, slightness, slimness, softness, sorcerer, sorcery, specious appearance, subtility, subtilty, subtlety, tenderness, tenuity, tenuousness, thinness, unactuality, unconcreteness, unheaviness, unreality, unsolidity, unsubstantiality, unsubstantialness, vagueness, volatility, wateriness, weakness, weightlessness, windiness, wispiness, yeastiness