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Related to deadening: sound deadening, sound deadening board
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Synonyms for deadening

the act of making something futile and useless (as by routine)

so lacking in interest as to cause mental weariness

References in periodicals archive ?
Excalibur crossbow packages include the following: Tact-Zone Illuminated Scope with 30mm rings, X-hanger Quiver with bracket, three Quill bolts with fieldpoints, rope-cocking aid, ambidextrous cheek piece, Sound Deadening System and R.
QQ Step Soft[TM] - A sound deadening recycled rubber mat promoting anti-fracture of tile while increasing sound ratings.
GLS's new damping technology is said to be "the first of its kind to provide true material damping by utilizing unique chemistries for sound and deadening across a wide frequency range (10-20,000 Hz).
Schools were sophisticated, diverse and innovative and, unlike today, free of deadening control from outside.
Mind you, squishing disk jockeys has to be the ultimate in sound deadening.
Someone who has the condition we call clinical depression, in fact, experiences the deadening of emotions, especially of pleasure, that Wise ascribes to medication used to treat the condition.
To dispel that deadening sense of airport anomie, the architects introduce light and views at every opportunity.
While Buick likes to go on and on about the "QuietTuning" interior on the Lucerne, chief engineer Ed Zellner reveals that both the DTS and Lucerne share sound deadening systems.
The book of Judges joins other prophetic books in warning the people of God in every age of the deadening results of unfaithfulness.
This cover, known as a guy protector, has several purposes, including sound deadening, rust prevention, and finger(s) protection
The rain is both cleansing and deadening, and its endless pattering simultaneously transitory and permanent.
Tiravanija's art seemed to offer an alternative to the deadening experience of "autonomous" objects in sterile white cubes--a living art of "conviviality and encounters," of "connections and meetings" (to quote Nicolas Bourriaud).
The enclosure consists of 14-gauge sheet metal lined with one- and two-inch layers of polydamp acoustical sound deadening material.
There is something deadening about going through life cautiously.
She speaks to other women in the hospital, learns about the sexually deadening impact of chemotherapy and holds close her bewildered son, Sebastian, who fears in silence.