Inactive1. (a.) Not active; having no power to move; inert; as, matter is, of itself, inactive.
2. (a.) Not disposed to action or effort; not diligent or industrious; not busy; idle; as, an inactive officer.
3. (a.) Not active; inert; esp., not exhibiting any action or activity on polarized light; optically neutral; -- said of isomeric forms of certain substances, in distinction from other forms which are optically active; as, racemic acid is an inactive tartaric acid.
Thesaurus Entries
abeyant, apathetic, asleep, at a standstill, cataleptic, catatonic, contemplative, dead, deliberate, disengaged, do-nothing, dopey, dormant, dull, easy, flat, foul, groggy, hasteless, heavy, idle, immobile, in abeyance, in suspense, inanimate, indolent, inert, inoperative, jobless, lackadaisical, laissez-aller, laissez-faire, languid, languorous, latent, lazy, leaden, leisurely, lethargic, lifeless, listless, logy, meditative, motionless, neuter, neutral, ossified, out of work, pacific, paralytic, paralyzed, passive, peaceful, phlegmatic, placid, procrastinating, quiescent, quiet, quietist, quietistic, relaxed, resting, sedentary, serene, slack, sleeping, sleepy, slothful, slow, sluggish, slumbering, smoldering, somnolent, stagnant, stagnating, standing, standpat, static, stationary, still, supine, suspended, tame, torpid, tranquil, unactive, unaroused, unemployed, unhasty, unhurried, unmoving, unoccupied, vegetable, vegetative