hard work:
ignorance,
neglect,
inactivity,
indifference,
negligence,
disregard,
hesitation,
apathy.
manufacturing:
indolence,
lethargy,
laziness,
unemployment,
worthlessness,
idleness.
noun:
carelessness,
slackness,
remissness,
negligence,
inattention,
fickleness,
changeableness,
neglect,
inconstancy,
sloth.