Synonyms|840Antonyms|161|Broader|11Narrower|16Related|1.2k
16
mature(adjective, adult)
15
well-versed(green, inept)
7
adult(adjective, old)
7
clever
7
gray
6
full-grown(adjective, developed)
6
grey
5
grown(adjective, old)
5
ready(adjective, dull, stupid, intelligent, skillful)
4
developed(verb, adjective, old)
4
grownup
4
mellow(adjective, strong, rough, mature, ripe)
4
ripe(adjective, experienced, developed)
3
old
3
big
3
dotard
3
experienced(verb, adjective, old)
3
fledged
3
nubile
2
abloom
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APASmart Define. (2016). immature thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/immature/thesaurus/antonyms
ChicagoSmart Define. 2016. "immature thesaurus" https://smartdefine.org/immature/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, immature thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/immature/thesaurus/antonyms>.
MLASmart Define. "immature thesaurus" 29 February 2016. Web. 27 September 2026. <https://smartdefine.org/immature/thesaurus/antonyms>