intransitive verb. To render less intense, sensitive, or vigorous.

intransitive verb. To make soundproof.

intransitive verb. To make less colorful or brilliant.

intransitive verb. To become dead.

intransitive verb. To lose vigor, brilliance, or liveliness.

To make dead (in a figurative sense); render less sensitive, active, energetic, or forcible; impair the sensitiveness or the strength of; dull; weaken: as, to deaden sound; to deaden the force of a ball; to deaden the sensibilities.

To retard; hinder; lessen the velocity or momentum of: as, to deaden a ship's way (that is, to retard her progress).

To make impervious to sound, as a floor.

To make insipid, flat, or stale: said of wine or beer.

To deprive of gloss or brilliancy: as, to deaden gilding by a coat of size.

To kill; especially, to kill (trees) by girdling.

transitive verb. To make as dead; to impair in vigor, force, activity, or sensation; to lessen the force or acuteness of; to blunt

transitive verb. To lessen the velocity or momentum of; to retard.

transitive verb. To make vapid or spiritless.

transitive verb. To deprive of gloss or brilliancy; to obscure.

transitive verb. To render impervious to sound, as a wall or floor; to deafen.

verb. To render less lively; to diminish; to muffle.

verb. To become less lively; to diminish (by itself).

verb. To make soundproof.

verb. lessen the momentum or velocity of

verb. become lifeless, less lively, intense, or active; lose life, force, or vigor

verb. make vapid or deprive of spirit

verb. cut a girdle around so as to kill by interrupting the circulation of water and nutrients

verb. make vague or obscure or make (an image) less visible

verb. make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation

verb. convert (metallic mercury) into a grey powder consisting of minute globules, as by shaking with chalk or fatty oil

"The air in the little chamber surrounding the mirror is compressed at will, so as to act like a cushion, and 'deaden' the movements of the mirror."

alter  break  change  convert  damp  

Armageddon  armageddon  leaden  ledden  redden  

KO  abate  absorb the shock  allay  alleviate  

deadened  deadening  deadens