What is "disgruntlement"?
I am certain you are capable of using a dictionary or the search features of a computer.
But I know the question is not your point, so look it up, then get back to me.
(The American Heritage® Dictionary of the English Language, Fourth Edition, Copyright © 2000 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.)
Hope that cleared it up for you.