0
sensible
0
serious
0
severe
0
sharp
0
sharp-witted
0
sober
0
sobersided
0
solemn
0
sound
0
stable
0
staid
0
supersmart
0
ultrasmart
0
uncomic
0
uncrazy
0
unneurotic
0
unsmiling
0
valid
0
weighty
0
well-adjusted
10 years ago|533 views|share |citing 
APASmart Define. (2016). cuckoo thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/cuckoo/thesaurus/antonyms
ChicagoSmart Define. 2016. "cuckoo thesaurus" https://smartdefine.org/cuckoo/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, cuckoo thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/cuckoo/thesaurus/antonyms>.
MLASmart Define. "cuckoo thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/cuckoo/thesaurus/antonyms>