Definition of changefulness in US English:

changefulness

noun

  • The state or quality of being changeful, varying, or inconstant.

Origin

Late 18th century; earliest use found in James Boswell (1740–1795), lawyer, diarist, and biographer of Samuel Johnson. From changeful + -ness.

Pronunciation

changefulness

/ˈtʃeɪn(d)ʒf(ʊ)lnəs/