Definition from Wiktionary, the free dictionary
youngish (not comparable)
- Somewhat young.
In spite of his youngish appearance, he had much experience.
1935, George Goodchild, chapter 5, in Death on the Centre Court:
- By one o'clock the place was choc-a-bloc. […] The restaurant was packed, and the promenade between the two main courts and the subsidiary courts was thronged with healthy-looking youngish people, drawn to the Mecca of tennis from all parts of the country.