(transitive) To refuse to acknowledge or recognize something; to disavow or deny.
disacknowledgement
disacknowledgements
disallowance
disallowance
noun
(law, politics) A power a higher level authority has to disallow particular legislation of the lower level jurisdiction; such as a federal government disallowing state/provincial legislation, or the crown disallowing federal legislation.
The action of not allowing, or of withdrawing allowance.
disallowances
disallowances
noun
plural of disallowance
misacknowledge
misacknowledge
verb
(rare) To fail to acknowledge; to acknowledge wrongly.