'Tunefulness' definitions:

Definition of 'tunefulness'

From: WordNet
noun
The property of having a melody [syn: melodiousness, tunefulness]

Definition of 'Tunefulness'

From: GCIDE
  • Tuneful \Tune"ful\ (-f[.u]l), a. Harmonious; melodious; musical; as, tuneful notes. " Tuneful birds." --Milton. -- {Tune"ful*ly}, adv. -- {Tune"ful*ness}, n. [1913 Webster]