"tiring" in the verb sense
1. tire, pall, weary, fatigue, jade
lose interest or become bored with something or somebody
"I'm so tired of your mother and her complaints about my food"
2. tire, wear upon, tire out, wear, weary, jade, wear out, outwear, wear down, fag out, fag, fatigue
exhaust or get tired through overuse or great strain or stress
"We wore ourselves out on this hike"
3. run down, exhaust, play out, sap, tire
"exhaust one's savings"
"We quickly played out our strength"
4. bore, tire
cause to be bored
"tiring" in the adjective sense
1. exhausting, tiring, wearing, wearying
"an exhausting march"
"the visit was especially wearing"
Source: WordNet® (An amazing lexical database of English)
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