youthful

Synonyms

adolescent, immature, juvenile, young, youngish;

Antonyms

adult, grown-up, mature, matured;

Near Antonyms

aged, aging (or ageing), ancient, elderly, geriatric, long-lived, old, older, oldish, senescent, senior;

full-blown, full-fledged;

golden, mellow, ripe, ripened;

middle-aged;

anile, decrepit, doddering, over-the-hill, senile, spavined, tottery;

Related Words

ephebic, minor, preteen, subadult, teenage (or teenaged), underage;

embryonic, emergent;

callow, green, inexperienced, puerile, raw;

babyish, childish, childlike, infantile, infantine, kiddish;

undeveloped, unfinished, unfledged, unformed, unripe, unripened;

blooming, blossoming, burgeoning, flourishing, flowering;