Английский словарь американских идиом - water down

{v.} To change and make weaker; weaken. * /The Senator argued that the House should water down the bill before passing it./ * /The African American did not accept watered down Civil Rights legislation./ * /After talking with the management about their demands, the workers agreed to water them down./ * /The teacher had to water down the course for a slow-learning class./