A lack of balance, as in distribution or functioning.(noun)
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 "imbalance" in a sentence
"With all seriousness, a man with some type of chemical brain imbalance is in charge of the most powerful post in the world."
"I would guess the imbalance is a relic of history and Law."
"Medicare and Medicaid face a very substantial long-term imbalance, and are at the heart of our long-term fiscal imbalance, which is the motivation for moving to a different structure in those programs."