laziness
n.the quality of not wanting to work or use any effort. It is the feeling of being unwilling to do something because it is too much trouble.
n.the quality or state of being unwilling to exert oneself or perform work despite having the ability to do so.
“His laziness is the reason he never finishes his homework.”
“The manager was frustrated by the team's laziness during the final week of the project.”
“While some view his lack of productivity as simple laziness, others argue it is a symptom of burnout caused by months of excessive overtime.”
Uncountable in its abstract sense; occasionally used with 'a' when describing a specific type or instance of the quality.
From lazy + -ness.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.