What is the opposite of vocation?
A vocation and a career are not mutually exclusive. A career is the job-path that one chooses for oneself, and a vocation is one's calling. So your career choice may be to be an artist, but if you hate doing that job, it is not also your calling. However, if your chosen career is to be a businessperson and you love to do that job, then it may also be your vocation. Similarly, you may…
Men only receive the sacrament of Holy Orders if they are called, if they have a vocation. Although, it would appear that a few of them managed to get ordained either without a vocation or without cooperating with that vocation. Nevertheless, if a man is called by God, then he enters the seminary and "tries his vocation".
I'm unsure as to how this specifically might relate to a religious question, but "vocation" is basically another word for "career" or "job." So, anyone who has ever had a job could be said to have had a "vocation." In the Catholic church "vocation" also refers to those who take a religious life - monks and nuns. Such a life is said to be their calling.