1. Slow in action; sluggish; inactive. 2. Devoid of active chemical properties, as the i. gases. 3. Denoting a drug or agent having no pharmacologic or therapeutic action. [L. iners, unskillful, sluggish, fr. in, neg. + ars, art]
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in·ert in-'ərt adj
1) lacking the power to move
2) deficient in active properties esp lacking a usual or anticipated chemical or biological action <an \inert drug>
in·ert·ness n
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in·ert (in-urtґ) having no action; not reacting with other elements, as inert gases.Medical dictionary. 2011.