'Desirableness' definitions:

Definition of 'desirableness'

From: WordNet
noun
The quality of being worthy of desiring [syn: desirability, desirableness] [ant: undesirability]
noun
Attractiveness to the opposite sex [syn: sex appeal, desirability, desirableness, oomph]

Definition of 'Desirableness'

From: GCIDE
  • Desirableness \De*sir"a*ble*ness\, n. The quality of being desirable. [1913 Webster]
  • The desirableness of the Austrian alliance. --Froude. [1913 Webster]