Thesaurus.com
Dictionary.com

not young

ADJECTIVE
old
Synonyms
STRONGEST
aged ancient decrepit elderly gray mature tired venerable
STRONG
fossil senior versed veteran
WEAK
along in years broken down debilitated enfeebled exhausted experienced geriatric getting on gray-haired grizzled hoary impaired inactive infirm matured olden oldish over the hill past one's prime seasoned senile skilled superannuated wasted
Antonyms
STRONGEST
new young youthful
STRONG
green inexperienced
WEAK
contemporary current fresh late modern recent up-to-date

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And also her books really are, as you indicate, for middle-grade readers, or they’re not young readers.

From Slate • Apr. 18, 2026

Cignetti, who just led Indiana to the most astounding turnaround in the sport’s history, is not young.

From The Wall Street Journal • Jan. 21, 2026

But I'm not young any more, so I need to be careful also.

From Barron's • Jan. 19, 2026

She recalled being told they should not be taken by women who were not young and healthy, but as a healthy 24-year-old, she was given the two tablets that confirmed her pregnancy.

From BBC • Jul. 29, 2024

Longstreet approached and saw that the comsilk hair was not young, not young at all.

From "The Killer Angels: The Classic Novel of the Civil War" by Michael Shaara