unyoung

Adjective

Meaning

unyoung (comparative more unyoung, superlative most unyoung)

not young
Synonyms: aged, old
Antonym: young

Source: en.wiktionary.org

aging geriatric long-lived septuagenarian senescent octogenarian nonagenarian

more unyoung less unyoung

youngun

unyoking unyolden unyolked unyouthful unyouthfully unyouthfulness