the GNU version of the Collaborative International Dictionary of English
n. same as adamancy.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. resoluteness by virtue of being unyielding and inflexible
Word Usage
"Doug told him that it was all right if he watched TV downstairs or made himself food in the kitchen, but Billy declared with an adamance that surprised them both that he would not go downstairs until they returned."