The term WORK'S OPPOSITE can be solved by two crossword solutions: PLAY (4 letters) and LEISURE (7 letters). PLAY is an activity that is done for enjoyment, typically involving physical or mental effort. It is often done for recreation or amusement, and is considered to be fun. LEISURE is the time when one is not working or occupied with other duties, and is free to do whatever one pleases. It is often used to describe activities that are enjoyable and relaxing. Both PLAY and LEISURE are the opposite of WORK, as they involve activities that are not related to work.