n. Absence of likelihood; the state of being unlikely or improbable; improbability.
the GNU version of the Collaborative International Dictionary of English
n. Absence of likelihood.
The Century Dictionary and Cyclopedia
n. The state of being unlikely or improbable; improbability.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the improbability of a specified outcome
Word Usage
"The failures of the system are attributed to causes within the world view of the those receiving the welfare, namely the unlikelihood of that class of people being honest, and not the fact that the administrators of the program were dishonest."