drop-out:
(also without a hyphen ‘dropout’; plural: ‘drop-outs‘)

a high school dropout, wondering what to do with his life
a student who discontinues (stops) attending classes or taking a course at school or college, especially in the middle of an academic year, i.e. before completing a particular course or a year;
a student who stops/discontinues his/her education after reaching the legal age or after finishing high school, i.e. not doing any higher education, such as a diploma or a degree, or any other technical course;
a person who continues for some time but stops/withdraws from participating in a job, task, race, competition or election before it is over;
a person who stops moving in an ordinary society, but tries to practise another life-style,
Priestly hasn’t got a decent job because he’s a high school dropout.
Studies on young criminals have shown that most of the school dropouts between 14 and 19 are involved in crimes and violent acts.
Larry, one of the three dropouts from the last presidential election, is running again this time and is known to have promised his supporters that he’ll continue to the end of the elections what may come!
Most social failures are trying to form into a community of their own in which, they believe, they can do whatever they like or want.

John Edward, 2008 presidential election dropout, USA
for an article that explains what a dropout factory is, please click here,
for an article on dropout prevention, please click here
and
for an article that gives us the list of the greatest dropouts, please click here.

