n. Want of activity or exertion; inertness; quietude.
the GNU version of the Collaborative International Dictionary of English
n. Lack of activity or exertion; inertness; quietude.
The Century Dictionary and Cyclopedia
n. Inertia; inertness; absence of exertion.
Word Usage
"Her weak faculties approved of inertion: her brain, her eyes, her ears, her heart slept content; they could not wake to work, so lethargy was their Paradise."