inactive

adjective

1. not active: an inactive volcano.
2. sedentary or passive: an inactive life.
3. sluggish; indolent.
4. Military. not on active duty.
5. Chemistry.
   1. inert; unreactive.
   2. noting a compound that has no effect on polarized light.

adjective

1. idle or inert; not active
2. sluggish, passive, or indolent
3. military of or relating to persons or equipment not in active service
4. chem (of a substance) having little or no reactivity
5. (of an element, isotope, etc) having little or no radioactivity