Impossible to deny or disprove.
From Latin *irrefutabilis* “not able to be refuted,” from *in-* “not” and *refutare* “to drive back, disprove.” It came to English meaning arguments that cannot be successfully challenged.
Irrefutable evidence doesn’t just support a claim—it traps you into accepting it if you’re honest. When a theory becomes irrefutable, the real debate usually shifts to what it means, not whether it’s true.
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