Synonyms|487Antonyms|98|Broader|13Narrower|26Related|341
15
mature
12
adult(noun, adjective)
7
old
6
clever
5
elderly
5
gray
4
grown-up
4
grey
3
full-blown
3
full-fledged
3
grownup
3
matured
3
ripe
3
ancient
3
big(adjective, grown)
3
dotard
3
gargantuan
3
new baby
3
older
3
ripened
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APASmart Define. (2016). juvenile thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/juvenile/thesaurus/antonyms
ChicagoSmart Define. 2016. "juvenile thesaurus" https://smartdefine.org/juvenile/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, juvenile thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/juvenile/thesaurus/antonyms>.
MLASmart Define. "juvenile thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/juvenile/thesaurus/antonyms>