0
serious-minded
0
sizable
0
smooth
0
sobersided
0
somber
0
spacious
0
suave
0
substantial
0
svelte
0
thoughtful
0
tremendous
0
unchildlike
0
uncomic
0
unfrivolous
0
unsmiling
0
vainglorious
0
versed
0
weighty
0
worldly
0
worldly-wise
11 years ago|1.5k views|share |citing 
APASmart Define. (2015). puerile thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/puerile/thesaurus/antonyms
ChicagoSmart Define. 2015. "puerile thesaurus" https://smartdefine.org/puerile/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2015, puerile thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/puerile/thesaurus/antonyms>.
MLASmart Define. "puerile thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/puerile/thesaurus/antonyms>