inert

Incapable of moving or acting.

Sluggish in action or motion; lethargic. synonym: inactive.

Not readily reactive with other elements; forming few or no chemical compounds.

Having no pharmacologic, metabolic, or other physiological effect.

Having no inherent power of action, motion, or resistance; without inherent force; inanimate; lifeless: applied to matter in its intrinsic character: as, an inert mass of clay; an inert corpse.

Indisposed or unable to move or act; inactive; sluggish: as, an inert drug.

Destitute of the power of moving itself, or of active resistance to motion.

Indisposed to move or act; very slow to act; sluggish; dull; inactive; indolent; lifeless.

Not having or manifesting active properties; not affecting other substances when brought in contact with them; powerless for an expected or desired effect.