the GNU version of the Collaborative International Dictionary of English
n. The state or quality of being inadmissible, or not to be received.
The Century Dictionary and Cyclopedia
n. The quality of being inadmissible, or not proper to be admitted, allowed, or received: as, the inadmissibility of an argument or of evidence.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. unacceptability as a consequence of not being admissible
Word Usage
"I also echo CrazyTrain’s highlighting of Miranda violations merely resulting in inadmissibility — makes sense in hindsight (it functions like the exclusionary rule does), but not intuitive or obvious if you haven’t thought of it."