unstable Hear it!

unstable definition

un·sta·ble (-stā′bəl)

adjective

not stable; specif.,
  1. not fixed, firm, or steady; easily upset or unbalanced
  2. changeable; variable; fluctuating
  3. unreliable; fickle
  4. emotionally unsettled
  5. Chem. tending to decompose or change into other compounds

Etymology: ME

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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