n. A lack of exactness; something inexact or imprecise
the GNU version of the Collaborative International Dictionary of English
n. Inexactness; uncertainty.
n. Something inexact; an instance of an inexact statement, measurement, etc..
The Century Dictionary and Cyclopedia
n. The state or character of being inexact or inaccurate; inexactness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quality of being inaccurate and having errors
Word Usage
"Nothing endures, nothing is precise and certain (except the mind of a pedant), perfection is the mere repudiation of that ineluctable marginal inexactitude which is the mysterious inmost quality of Being."