the GNU version of the Collaborative International Dictionary of English
n. Doubtfulness; uncertainty; doubt.
The Century Dictionary and Cyclopedia
n. Doubtfulness; dubiousness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the state of being unsure of something
Word Usage
"Well, first things first: to be honest, if she doesn't welcome fanfiction of her work, I'm inclined to think she can only be right about its ethical dubiety ... when it comes to fanfiction of her work, that is ... mostly."