'Changeful' definitions:

Definition of 'changeful'

(from WordNet)
adjective
Such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices" [syn: changeable, changeful] [ant: unchangeable]

Definition of 'Changeful'

From: GCIDE
  • Changeful \Change"ful\, a. Full of change; mutable; inconstant; fickle; uncertain. --Pope. [1913 Webster]
  • His course had been changeful. --Motley. -- {Change"ful*ly}, adv. -- {Change"ful*ness}, n. [1913 Webster]