Having the tendency or ability to change; variable.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "changeful" in a sentence
"Fortune is proverbially called changeful, yet her caprice often takes the form of repeating again and again a similar stroke of luck in the same quarter."
"The little wizard, as Uncle Morris facetiously called her changeful impulses, was her tyrant."
"I think the epithet 'changeful' prettier, and, until we know what"