In Chapter V of "Pride and Prejudice" Mrs. Bennet converses with neighbors, the Misses Lucas, after the party at which Mr. Bingley and his sisters and friend Mr. Darcy were in attendance.  Mrs. Bennet tells Charlotte Lucas,

I beg you would not put it into Lizzy's head to be vexed by his ill-treatment; for he is such a disagreeable man that it would be quite a misfortune to be liked by him.

This statement is an example of irony of situation. as later events in the narrative directly contradict the expectations of Mr. Darcy that the reader is given at this point.

One of the greatest ironies of the entire novel begins in these chapters. When Darcy and Elizabeth meet, and for much of the novel, they instantly dislike each other. Although there is something that attracts each one to the other, neither character can stand the other. Both have strong personalities, but both are fallible. Elizabeth is intelligent but extremely independent and prejudiced. Darcy is handsome, rich but very proud. The reader can sense the two will eventually come together, but, ironically, neither Darcy nor Elizabeth will admit even a slight interest in each other.