irritable

"The new math homework was easily understood by the students. "

"Her son's constant whining exasperated her. "

"Do you need a gift for that special someone?"

"As everyone knew, he was capable of violence when roused."

"The customer service representative was very responsive to my questions, answering each one quickly and clearly. "

"an economic stimulus"

"I was touched that he should remember my birthday."

"The loud chewing of the student next to her irritated the teacher. "

"Marc loved his sister, but when she annoyed him he wanted to switch her off."

"My sister is always driving me crazy."

"Whenever will I find time to finish that jigsaw?"

"The fireworks which opened the festivities excited anyone present."