deadening

(noun) the act of making something futile and useless (as by routine). Synonyms: stultification, constipation, impairment.

(verb) make vague or obscure or make (an image) less visible. Synonyms: dampen, deaden, damp. Example: "Muffle the message."

(verb) cut a girdle around so as to kill by interrupting the circulation of water and nutrients. Synonyms: girdle, deaden. Example: "Girdle the plant."

(verb) make vapid or deprive of spirit. Synonyms: deaden. Example: "Deadened wine."

(verb) lessen the momentum or velocity of. Synonyms: deaden. Example: "Deaden a ship's headway."

(verb) become lifeless, less lively, intense, or active; lose life, force, or vigor. Synonyms: deaden.

(verb) make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation. Synonyms: deaden, blunt. Examples: "Terror blunted her feelings." "Deaden a sound."

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

(adj) so lacking in interest as to cause mental weariness. Synonyms: boring, dull, ho-hum, irksome, slow, tedious, tiresome, wearisome. Examples: "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."