elephant in the room, an

An obvious truth or fact, especially one regarded as embarrassing or undesirable, that is being intentionally ignored or left unaddressed. We all sat sipping our tea quietly, no one wanting to bring up the elephant in the room about Joel's expulsion from college. The incident has remained something of an elephant in the room within our family.

A matter or problem that is obvious or of great importance but that is not discussed openly.

An extremely obvious circumstance that can hardly be overlooked. Jo Bannister used it in Liars All (2009), “She hadn’t told Paddy how serious Jonathan’s condition was . . . But it was like an elephant in the drawing room; Paddy didn’t need pointing it out to know it was there.” And Lindsay Coates’s column about Haiti’s lack of land rights slowing recovery from the devastating earthquake was headlined: “Land Tenure: Haiti’s Elephant in the Room” (Huffington Post, July 21, 2010). See also seen the elephant.