◊ 'tiresome'
You say that someone or something is tiresome when they make you feel annoyed, irritated, or bored.
She can be a very tiresome child at times.
I really came to ask you some rather tiresome questions.
◊ 'tiring'
Something which is tiring makes you feel tired.
We should have an early night after such a tiring day.
Useful english dictionary. 2012.