'Tiring' definitions:

Definition of 'tiring'

From: WordNet
adjective
Producing exhaustion; "an exhausting march"; "the visit was especially wearing" [syn: exhausting, tiring, wearing, wearying]

Definition of 'Tiring'

From: GCIDE
  • 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]

Synonyms of 'tiring'

From: Moby Thesaurus