'Usefulness' definitions:

Definition of 'usefulness'

From: WordNet
noun
The quality of being of practical use [syn: utility, usefulness] [ant: inutility, unusefulness, uselessness]

Definition of 'Usefulness'

From: GCIDE
  • Usefulness \Use"ful*ness\, n. The quality or state of being useful; utility; serviceableness; advantage. --Addison. [1913 Webster]
  • Syn: Utility; value; profit. See Utility. [1913 Webster]