student asking question

What's "I could not fathom" mean?

teacher

Native speaker’s answer

Rebecca

"I could not fathom" means to not understand or comprehend something! It often emphasizes that something is remarkable or extraordinary, or in the negative sense, that something is terrible. Ex: I couldn't begin to fathom how terrible it would be. Ex: One can't fathom how beautiful it is in the Alps until you go there.

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