dampen, deaden, damp -- (make vague or obscure or make (an image) less visible; "muffle the message")
girdle, deaden -- (cut a girdle around so as to kill by interrupting the circulation of water and nutrients; "girdle the plant")
deaden -- (make vapid or deprive of spirit; "deadened wine")
deaden -- (lessen the momentum or velocity of; "deaden a ship's headway")
deaden -- (become lifeless, less lively, intense, or active; lose life, force, or vigor)
deaden, blunt -- (make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation; "Terror blunted her feelings"; "deaden a sound")
deaden -- (convert (metallic mercury) into a grey powder consisting of minute globules, as by shaking with chalk or fatty oil)
Overview of adj deadening
The adj deadening has 1 sense
boring, deadening, dull, ho-hum, irksome, slow, tedious, tiresome, wearisome -- (so lacking in interest as to cause mental weariness; "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn't capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people's dreams are dreadfully wearisome")
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