elderly

adj

1. old; having lived for relatively many years.
2. Of an object, being old-fashioned or frail due to aging.

   “The car was parked toward the rear of the shop, an elderly gray-blue Dodge. It looked better than it had in years.”

   “The fleet had been ordered speculatively by Beacon Rail, and intended as heavy shunting and trip locomotives, as well as a viable low-emission replacement for the elderly Class 08/09 'BR Standard large shunter' which dates from the 1950s and 1960s.”

noun

1. (uncommon)An elderly person.

   “He lives next door to an elderly.”

   “He lives next door to some elderlies.”

2. (collective, with-definite-article)Older people as a whole.

   “the elderly”

   “health insurance and retirement income for the elderly”