rarity

As a noun rarity

is a measure of the scarcity of an object.

As an adjective rar is

rare.

As a noun rarity

is a measure of the scarcity of an object.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between outlier and rarity

is that outlier is a person or thing away from others or outside its proper place while rarity is a measure of the scarcity of an object.

As nouns the difference between unavailability and rarity

is that unavailability is the state of being unavailable while rarity is a measure of the scarcity of an object.

As nouns the difference between rarity and chordate

is that rarity is a measure of the scarcity of an object while chordate is a member of the phylum chordata ; numerous animals having a notochord at some stage of their development; in vertebrates this develops into the spine.

As an adjective chordate is

of such animals.

As nouns the difference between rarity and taxonomy

is that rarity is a measure of the scarcity of an object while taxonomy is the science or the technique used to make a classification.

As nouns the difference between shortage and rarity

is that shortage is a lack or deficiency; an insufficient amount while rarity is a measure of the scarcity of an object.

As a noun rarity

is a measure of the scarcity of an object.

As a proper noun cynicism is

the philosophy of the greek cynics.

As nouns the difference between rarity and sparsity

is that rarity is a measure of the scarcity of an object while sparsity is the property of being sparse, sparseness.

As nouns the difference between want and rarity

is that want is a desire, wish, longing while rarity is a measure of the scarcity of an object.

As a verb want

is to wish for or to desire (something).

As a proper noun Want

is a personification of want.