1. to show that something is not true or correct; to prove false
Usage: formal; often used in academic or scientific contexts

Examples

• The new evidence disconfirmed the original hypothesis.
• Scientists worked to disconfirm the theory through careful experimentation.
• The witness testimony disconfirmed the defendant’s alibi.
• Further research may disconfirm these preliminary findings.
• The data failed to disconfirm the null hypothesis.
• Archaeological discoveries can disconfirm long-held historical beliefs.