water down
US /ˈwɑː.t̬ɚ daʊn/
UK /ˈwɑː.t̬ɚ daʊn/

1.
annacquare, diluire, indebolire
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.
L'azienda ha deciso di annacquare la nuova politica dopo le lamentele dei dipendenti.
•
He tried to water down his controversial statements during the interview.
Ha cercato di annacquare le sue dichiarazioni controverse durante l'intervista.