Definition

Something that cannot be denied or disproven; it is certain and unquestionable.

Example

The scientist presented irrefragable evidence to support her theory.

Conversation

Did you hear about the new study on climate change?

Yeah, I read it had irrefragable evidence supporting the claims.

Exactly! It's hard to argue against facts like that.

For sure, it really makes you think about the future.

Synonyms & Antonyms

Root Explanation

Irrefragable is formed from "in-" (meaning not) and "refragari" (meaning to refute or oppose). The word describes something that cannot be refuted or opposed, indicating its undeniable nature.

Memory Tip

Think of something that cannot be 'refuted' ('refragari') — the 'in-' means not, so irrefragable means not able to be denied.

Visually Confused Words