5
gray
4
grey
4
mature
3
dotard
3
grown-up(adjective, mature)
2
adult
1
big(adjective, grown)
1
elderly
1
mature love
1
old
1
strong
0
aged
0
aging
0
ample
0
ancient
0
audacious
0
brawny
0
burly
0
complete
0
cosmopolitan
11 years ago|562 views|share |citing 
APASmart Define. (2015). babyish thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/babyish/thesaurus/antonyms
ChicagoSmart Define. 2015. "babyish thesaurus" https://smartdefine.org/babyish/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2015, babyish thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/babyish/thesaurus/antonyms>.
MLASmart Define. "babyish thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/babyish/thesaurus/antonyms>