rarity
(noun)
noun
1. noteworthy scarcity
Similar word(s): infrequency, rareness
Definition categories: attribute, scarceness, scarcity
2. a rarified quality
Similar word(s): tenuity
Definition categories: attribute, denseness, density
3. something unusual -- perhaps worthy of collecting
Similar word(s): curio, curiosity, oddity, oddment, peculiarity
Definition categories: man–made, object