He might be irritating at times, but he was never boring.
The word stung, irritating him.
So much for that irritating situation.
It was irritating most of the time, like now when he wanted to get a quick response out of one.
Many other substances, such as chrysarobin, mustard, pepper, &c., are also capable of irritating the skin, the effect produced varying from mere dilatation of the cutaneous vessels to destruction of tissue.