D defs.my
Entry 3 senses · 2 variants Webster, 1913

deadening

· dead·en·ing · IPA /dˈɛdənɪŋ/
01 adj. Rendering less lively, intense, or vigorous; as, the deadening effect of some routine tasks.
  1. 1.
    Rendering less lively, intense, or vigorous; as, the deadening effect of some routine tasks.
  2. 2.
    So lacking in interest as to cause mental weariness; as, the deadening effect of some routine tasks.
02 n. The act of making something futile and useless (as by routine).
  1. 1.
    The act of making something futile and useless (as by routine).