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defeater

  • a word derived from defeat.
    defeat
    verb (used with object)
    to overcome in a contest, election, battle, etc.; prevail over; vanquish.

Example Sentences

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Notice that because a defeater is evidence that would undermine a person’s justification, what counts as a defeater depends on what justification is.

From Textbooks Jun. 15, 2022

That the area is predominantly filled with barn facades is what is known as a defeater because it serves to defeat the justification for his belief.

From Textbooks Jun. 15, 2022

We are told that a defeater is evidence that would undermine a person’s justification but not how it does this.

From Textbooks Jun. 15, 2022

Vicarious plans to keep the technology behind its Captcha defeater secret for now.

From BusinessWeek Oct. 28, 2013

“It’s just odd that a man who is a master fencer, a defeater of giants, an expert in the use of iocane powder, would not know what this ravine opens into.”

From "The Princess Bride" by William Goldman