inactive -- ((chemistry) not participating in a chemical reaction; chemically inert; "desired amounts of inactive chlorine")
inactive -- ((pathology) not progressing or increasing; or progressing slowly)
nonoperational, inactive -- ((military) not involved in military operations)
inactive -- (not exerting influence or change)
dormant, inactive -- ((of e.g. volcanos) not erupting and not extinct ; "a dormant volcano")
passive, inactive -- (lacking in energy or will; "Much benevolence of the passive order may be traced to a disinclination to inflict pain upon oneself"- George Meredith)