inertial
/ɪˈnɜrʃəl/
adjective
- Relating to the physical property of matter that causes it to resist changes in motion.
- In physics class, we learned about inertial mass and how it affects acceleration.
- The spacecraft's inertial navigation system helps it stay on course without external signals.
- The inertial force of the car kept it moving forward even after the engine stopped.