the GNU version of the Collaborative International Dictionary of English
adj. That may be predicted.
The Century Dictionary and Cyclopedia
Capable of being predicted or foretold; admitting of prediction, or determination in advance.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. capable of being foretold
Word Usage
"I don't know what definition of "predictable" they've encountered, but in the one I know, "predictable" is what you were expecting and, when you don't get it, that's "unpredictable"."