1. taken out of active service or operation; no longer in use

1. to take (a ship, military equipment, or facility) out of active service
Usage: past tense and past participle of decommission

Examples

• The decommissioned aircraft carrier was sold for scrap metal.
• The Navy decommissioned the submarine after 30 years of service.
• Several decommissioned power plants have been converted into museums.
• They decommissioned the old factory last year.
• The decommissioned military base is now a public park.
• The government decommissioned the nuclear reactor due to safety concerns.