boredom

boredom
    n 1: the feeling of being bored by something tedious [syn:
         {boredom}, {ennui}, {tedium}]
    

Boredom \Bore"dom\, n.
   1. The state of being bored, or pestered; a state of ennui.
      --Dickens.
      [1913 Webster]

   2. The realm of bores; bores, collectively.
      [1913 Webster]
    

117 Moby Thesaurus words for "boredom":
      acedia, aloofness, angst, anguish, anxiety, apathy, boredness,
      carelessness, cheerlessness, detachment, discomfort, discomposure,
      discontent, disgust, disinterest, disinterestedness, dislike,
      dispiritedness, displeasure, disquiet, dissatisfaction, distaste,
      doldrums, dread, dreariness, drowsiness, dullness, emptiness,
      enervation, ennui, existential woe, fatigue, fed-upness, flatness,
      grimness, heaviness, hebetude, heedlessness, impassiveness,
      impassivity, inanimation, incuriosity, incuriousness, indifference,
      indifferentism, indifferentness, inquietude, insouciance,
      intellectual inertia, jadedness, joylessness, lack of interest,
      lack of pleasure, lackadaisicalness, languidness, languishment,
      languor, languorousness, lassitude, lenitude, lentor, lethargy,
      life-weariness, lifelessness, listlessness, malaise, melancholy,
      monotony, nausea, nongratification, nonsatisfaction, oscitancy,
      painfulness, passivity, phlegm, regardlessness, satedness,
      satiation, satiety, savorlessness, sleepiness, sloth, slothfulness,
      slowness, sluggishness, somnolence, spleen, staleness, stolidity,
      stupefaction, stupor, supineness, taedium vitae, tastelessness,
      tediousness, tedium, tiredness, torpidity, torpidness, torpitude,
      torpor, uncomfortableness, unconcern, unease, uneasiness,
      unhappiness, uninquisitiveness, uninterestedness, unmindfulness,
      unpleasure, unsatisfaction, vexation of spirit, wearifulness,
      weariness, withdrawal, world-weariness, yawn