inertia

Meaning

Noun

• The property of a body that resists any change to its uniform motion; equivalent to its mass.
• In a person, unwillingness to take action.
• Lack of activity; sluggishness; said especially of the uterus, when, in labour, its contractions have nearly or wholly ceased.

Related

Similar words

• idleness, laziness, sloth, slothfulness

Origin

• From New Latin coined by Johannes Kepler, From Latin inertia, from iners, from in- + ars.