0 past simple and past participle of quieten
1 to (cause someone to) become calmer or less noisy:
The barking dogs quietened (down) when they recognized me.
I hope that the murmurs of disapproval are now quietened and that we can proceed with an examination of this important matter.
We have the vague impression that things have quietened down.
When public opinion is too restive to be quietened by indifference?
It has been quietened down as being something which it is almost indecent to talk about—the future state of our country.
I hope that by my answer such apprehensions will have been quietened.
By our treatment of them we are not helping to ease, but are perpetuating, a situation that should be quietened down.
A number of years later, when the situation had quietened down, those quangos were privatised.
I think that if those procedures were understood some of the concern would be quietened.