What are the opposite words for confirmation?

Antonyms for the word "confirmation" may include: disproof, negation, rejection, contradiction, refutation, cancellation, and disavowal. These words have the opposite meaning to confirmation, which is a statement or evidence that proves something to be true or valid. Disproof refers to evidence that proves a statement or argument to be false. Negation is the act of nullifying something by denying its truth or existence. Rejection refers to the act of refusing or discarding a proposal, idea, or statement. Contradiction is the act of arguing against something or presenting an opposing viewpoint. Refutation is the act of proving a statement to be false or invalid. Cancellation refers to the act of voiding or revoking an agreement, statement, or action.

Antonym of the day

hath number
estimate, guess, subtract.