1. made invalid or void; canceled or nullified
Usage: past tense and past participle of invalidate
2. proved to be false or incorrect; discredited
Usage: past tense and past participle of invalidate

Examples

• The court invalidated the contract due to fraud.
• Her passport was invalidated when she became a citizen of another country.
• The new evidence invalidated their original theory.
• The election results were invalidated because of voting irregularities.
• His argument was invalidated by the scientific data.
• The warranty was invalidated when he opened the device.
• The study’s findings were invalidated by methodological flaws.