tacit

Tacit describes something that is understood or implied without being openly said. It often refers to agreements, approval, or assumptions that exist in silence rather than in words.

Негласный, подразумеваемый и понятный без прямого обсуждения. Так говорят о соглашении, одобрении или правиле, которое все как будто молча приняли.

«We had a tacit understanding that whoever cooked dinner didn’t have to do the dishes.»

seen in Merriam-Webster