the elephant in the room

US /ðɪ ˈɛlɪfənt ɪn ðə ruːm/
UK /ðɪ ˈɛlɪfənt ɪn ðə ruːm/
"the elephant in the room" picture
1.

o elefante na sala, um problema óbvio que as pessoas evitam discutir

an obvious problem or difficult situation that people do not want to talk about

:
Everyone knew about the company's financial troubles, but no one dared to address the elephant in the room.
Todos sabiam dos problemas financeiros da empresa, mas ninguém ousava abordar o elefante na sala.
Their strained relationship was the elephant in the room during the family dinner.
O relacionamento tenso deles era o elefante na sala durante o jantar em família.