the GNU version of the Collaborative International Dictionary of English
n. State of being determinate.
The Century Dictionary and Cyclopedia
n. The state of being determinate, certain, or precise.
n. The quality of being determined or of persevering fixedness of purpose; determination.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quality of being predictable with great confidence
Word Usage
"There are alleged asymmetries of "determinateness" of reality: It is sometimes claimed that past and present have determinate reality, but that the future, being a realm of mere possibilities, has no such determinate being at all."