[{"Bold_text": "noun", "List Items": ["inertness, especially with regard to effort, motion, action, and the like; inactivity; sluggishness.Synonyms: laziness , inaction , torpor", "Physics.the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force.an property of a force:electric inertia.", "the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force.", "an property of a force:electric inertia.", "Medicine/Medical.lack of activity, especially as applied to a uterus during childbirth when its contractions have decreased or stopped."]}]