1. (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.

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