1. [adjective] Unable to move or act; inanimate.
2. [adjective] Sluggish or lethargic.
3. [adjective] In chemistry, not readily reacting with other elements or compounds.
4. [adjective] Having no therapeutic action.
5. [noun] (chemistry) A substance that does not react chemically.
6. [adjective] Unable to move or resist motion.
7. [adjective] Having only a limited ability to react chemically; chemically inactive; 'inert matter'; 'an indifferent chemical in a reaction'.
8. [adjective] Slow and apathetic; 'she was fat and inert'; 'a sluggish worker'; 'a mind grown torpid in old age'.
