from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Difficult to foretell or foresee.
  • noun Something difficult or impossible to foretell or foresee.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Unable to be predicted.
  • noun An unpredictable thing.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective not occurring at expected times
  • adjective not capable of being foretold
  • adjective unknown in advance


from Wiktionary, Creative Commons Attribution/Share-Alike License

un- +‎ predictable


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  • "You can't tell what he might do."

    - Lord of the Flies

    July 26, 2009