noun
the quality of being unwilling to work or use energy; idleness.
“it was sheer laziness on my part”
Similar: idleness, ,indolence, slothfulness, sloth, shiftlessness, inactivity, inertia, sluggishness, lethargy, languor, torpidity, slowness, heaviness, dullness, remissness, negligence, slackness laxity
Opposite: industriousness, energy