the world > action or operation > failure or lack of success > [noun] > failure to achieve or attain > under-achieving > one who
underdoer1753
under-achiever1953
1753 S. RichardsonHist. Sir Charles Grandison V. ix. 45 These overdoers, my dear, are wicked wretches. What do they, but make religion look unlovely, and put underdoers out of heart?