The term 'NOTHING-TO-DO FEELING' can be summarized as the feeling of BOREDOM, which is a 7 letter word. BOREDOM is an emotion that is experienced when one has nothing to do or is not interested in the activities they are doing. It is often associated with feelings of restlessness, apathy, and dissatisfaction. BOREDOM can lead to a lack of motivation and productivity, and can even have a negative impact on mental health.