Definitions

1. verb

to express disagreement or contradiction, often in a direct and forceful manner

“The witness could not gainsay the evidence presented against her.”

2. verb

to deny or contradict the truth of something

“The scientist’s theory was gainsaid by the lack of empirical evidence.”

3. noun

a statement or expression that contradicts or denies something

“The court ruled that the defendant’s gainsay was not sufficient to overturn the verdict.”