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

tire \tire\, v. i. imp.  p. p. tired; p. pr.  vb. n.
   tiring. oe. teorien to become weary, to fail, as. teorian
   to be tired, be weary, to tire, exhaust; perhaps akin to e.
   tear to rend, the intermediate sense being, perhaps, to wear
   out; or cf. e. tarry.
   to become weary; to be fatigued; to have the strength fail;
   to have the patience exhausted; as, a feeble person soon
   tires.
   1913 webster
see also:
tired tiring 

[2] : WordNet (r) 2.0

tiring
     adj : producing exhaustion; "an exhausting march"; "the visit was
           especially wearing" syn: exhausting, wearing, wearying
see also:
exhausting wearing wearying 

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

24 moby thesaurus words for "tiring":
   boresome, boring, draining, drudging, exhausting, fatiguesome,
   fatiguing, grueling, irksome, killing, punishing, straining,
   stressful, stupefyingly boring, stuporific, tedious, tiresome,
   toilsome, trying, weariful, wearing, wearisome, wearying, yawny

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