The term "most decommissioned" refers to something that has been taken out of use or service. Synonyms for this phrase include retired, demobilized, withdrawn, decommissioned, phased out, and discontinued. Each of these words can be used interchangeably with the phrase most decommissioned. Retired refers to something that has been taken out of service due to age or obsolescence. Demobilized is used more commonly in a military context and refers to soldiers being dismissed from service. Withdrawn is used to describe something that has been pulled back or removed from use. Phased out and discontinued are similar and refer to the gradual removal of something from use or existence.