[1] : The Collaborative International Dictionary of English v.0.48

tiresome \tire"some\, a.
   fitted or tending to tire; exhausted; wearisome; fatiguing;
   tedious; as, a tiresome journey; a tiresome discourse. --
   tire"somely, adv. -- tire"someness, n.
   1913 webster
see also:
tire"somely tire"someness 

[2] : WordNet (r) 2.0

tiresome
     adj : 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" syn: boring, deadening, dull,
            ho-hum, irksome, slow, tedious, wearisome
see also:
boring deadening dull ho-hum irksome slow 
tedious wearisome 

[3] : Moby Thesaurus II by Grady Ward, 1.0

88 moby thesaurus words for "tiresome":
   aggravating, annoying, bland, boresome, boring, bothering,
   bothersome, burdensome, common, commonplace, difficult,
   disagreeable, disturbing, draining, drudging, dull, exasperating,
   exhausting, fatiguesome, fatiguing, flat, galling, grueling,
   harassing, hard, humdrum, hypnotic, importunate, importune,
   insipid, irking, irksome, irritating, jading, killing,
   matter-of-fact, monotonous, mundane, onerous, oppressive, ordinary,
   pedestrian, pesky, pestering, pestiferous, pestilent, pestilential,
   plaguesome, plaguey, plaguing, plain, poetryless, prosaic, prosing,
   prosy, provoking, punishing, soporific, straining, stressful,
   stupefyingly boring, stuporific, teasing, tedious, tiring,
   toilsome, tormenting, troublesome, troubling, trying,
   unembellished, unidealistic, unimaginative, unimpassioned,
   uninteresting, unpleasant, unpoetic, unromantic, vapid, vexatious,
   vexing, weariful, wearing, wearisome, wearying, worrisome,
   worrying, yawny

Tiresome >> T Words
Tiresome, definition of term: Tiresome
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