water down

US /ˈwɑː.t̬ɚ daʊn/
UK /ˈwɑː.t̬ɚ daʊn/
"water down" picture
1.

to make something weaker or less effective, especially by adding water or by reducing the strength of an argument or proposal

:
The company decided to water down the new policy after employee complaints.
He tried to water down his controversial statements during the interview.