unoperative

Out of commission

Unoperative means not functioning or not in operation.

The word appears occasionally as a variant of *inoperative*, though inoperative is the standard form: The machine remained unoperative after the power outage.

In some contexts, unoperative describes something that was never put into operation rather than something that has broken down.

dysfunctional

malfunctioning

Operating incorrectly or failing

inoperableCannot be repaired
faultyHaving defects or errors
defectiveHaving inherent faults

nonfunctional · unserviceable · broken · disabled · unresponsive · kaput · dead · down · impaired · paralyzed

obsolete

outdated

No longer in use

antiquatedOld and outdated
discontinuedNo longer available
deprecatedFormally advised against using

superseded · retired · decommissioned · mothballed · shelved · abandoned · disused · defunct · legacy · unsupported

inactive

dormant

Inactive but capable

idleWithout activity or purpose
suspendedHalted or hanging temporarily
haltedCame to rest

paused · standby · quiescent · latent · static · offline

ineffective

ineffectual

Failing to achieve purpose

futileIncapable of producing results
uselessWithout practical value
unproductiveFailing to achieve results

impotent · powerless · inadequate · unsuccessful · fruitless · unavailing · inert · toothless · feckless · lame

Opposites

functionality/working status

unoperativeoperative

Covert field agent

operational · functioning · working · active · running

Family

operate, operation, operator, operative, operations, operational, operators, operable, inoperative

Familiarity: Top 1,000,000
Profile: Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G