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Phrase(s): I can’t accept that.
Inf. I do not believe what you said.; I reject what you said. • Sue: The mechanic says we need a whole new engine. John: What? I can’t accept that! • Tom: You’re now going to work on the night shift. You don’t seem to be able to get along with some of the people on the day shift. Bob: I can’t accept that. It’s them, not me.
McGrawhill's American Idioms And Phrasal Verbs