desirability

-ity

Used to form an uncountable noun from an adjective; especially, to form the noun referring to the state, property, or quality of conforming to the adjective's description. · Used to form a countable noun from an adjective, referring to someone or something that conforms to the adjective's description.

也可拆解为

-ability

Forms a noun from a verb or an adjective by changing from -able; ability, inclination or suitability for a specified function or condition.