paradox - A situation or idea that seems strange because it involves two aspects that are very different and seem to contradict each other, and both may be true.
It's a paradox that often it's the busiest people that have to most time to contribute to the needs of others.
scintillating - Describing someone or something that is exceptionally witty and entertaining, and is intellectually or emotinally stimulating.
Her scintillating conversation captivated those she talked to at the dinner party, leaving them laughing and enjoying themseles.
irritate - To make someone angry, or annoyed; or to make apart of your body sore or painful.
After the mother spent hours peparing the Friday night meal, she was irritated when the whole family ate quickly and left without thanking her or even saying anything in appreciation.