noun

laziness; indolence.

he was punished for his idleness at school

laziness,indolence,slothfulness,sloth,shiftlessness,inertia,sluggishness,lethargy,languor,torpidity,torpor,remissness,negligence,slackness,laxity,fainéance,otiosity,hebetude,inactivity,inaction,dormancy,unemployment,rest,repose