Focus on the pronunciation of inertia
English definition of “inertia”
/ɪˈnɜr·ʃə/ n [U]
› the tendency not to change what is happening: Many teachers were reluctant to use computers in their classrooms simply out of inertia. › physics Inertia is the force that causes something moving to tend to continue moving, and that causes something not moving to tend to continue not to move.