Not active or tending to be active.adjective
Not functioning or operating; out of use.adjective
Not being in continuous use or operation.adjective
Retired from duty or service.adjective
Not readily participating in chemical reactions; inert.adjective
Marked by the absence or lessening of disease activity.adjective
Showing no optical activity in polarized light.
In chem., causing no rotation in the plane of polarized light.
Not active or acting.