burnoutburn·out /ˈbɜːnaʊtˈbɜːrn-/ noun [countableC]1HUMAN RESOURCES a feeling of extreme tiredness and lack of energy caused by working too hardWith longer vacations you would see less burnout and higher productivity.
2American EnglishAmE when people stop doing something because they are tired of doing it or feel they have been asked to do it too muchDonor burnout grows as requests for money increase and fewer people can afford to give.