negation
Definitions
The action or process of negating something or the state of being negated.
A negative statement, proposition, or logical operation that reverses the truth value of a given statement.
Examples
The logical negation of a true statement is always false.
His constant negation of the facts made it impossible to reach a reasonable agreement.
Synonyms
denial refusal rejection contradiction disavowal nullification cancellation
Antonyms
affirmation confirmation assertion acceptance approval agreement validation