the GNU version of the Collaborative International Dictionary of English
adj. tending to invalidate or prove false.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. establishing as invalid or untrue
Word Usage
"And "invalidating" the labor contract would reduce that 10% by a few percent, so what is the savings there, really, compared to other measures that might actually have a chance of fixing the problem."