absonant
adj. C2 Proficiency ab·so·nant
adj. not having any sound or being completely silent. This word is very old and you will only see it in very old books or poems.
adj. silent or devoid of sound.
The absonant silence of the night was broken by a single cry.
In the ancient manuscript, the poet described the absonant hush that fell over the valley during the storm.
The philosopher argued that true wisdom requires an absonant mind, one that can listen to the silence between words rather than merely reacting to the noise of the world.
From ab- + sonant, from Latin sonans (“sound”).