deadquiet
adjectiveUK /ˌdɛdˈkwaɪət/
US /ˌdɛdˈkwaɪət/
So quiet that you can hear almost nothing at all.
The house was deadquiet after everyone went to bed.
OTHER MEANINGS
2. Completely without sound or activity.
The deadquiet street felt strange at midnight.
3. A total absence of noise in a place.
A deadquiet settled over the classroom when the teacher walked in.
4. Extremely calm and free from disturbance.
They sat in deadquiet peace by the lake.