the tender age of (something)

the tender age of (something)

A specific youthful age. Sarah's a child genius. She was doing science experiments at the tender age of 10! I experienced my first true heartbreak at the tender age of 18.
See also: age, of, tender

tender age of

the young age of... She left home at the tender age of 17 and got married to a rock singer.
See also: age, of, tender