What does "fortunate" mean?

Fortunate: Receiving same unforeseen or unexpected good, or some good which was not dependent on one's own skill or efforts; favored with good forune; lucky. -- Fortunate, Successful, Prosperous. A man is fortunate, when he is favored of fortune, and has unusual blessings fall to his lot; successful when he gains what he aims at; prosperous when he succeeds in those things which men commonly desire. One may be fortunate, in some cases, where he is not successful; he may be successful, but, if he has been mistaken in the value of what he has aimed at, he may for that reason fail to be prosperous.