The quality or condition of being erratic or undependable: emotional instability; political instability. (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 "instability" in a sentence
"Lubos is using the term instability the way I find it meaningful."
"So there lies (excuse the pun) the problem for the West either to intervene in Libya and cause further mayhem for years to come (Iraq, Afghanistan) or let the problem pan out with short term instability and persecution..decisions decisions Obama and co..."
"Short interest in this stock is starting to grow and day traders should watch this in order to take advantage of some short term instability."