0
serious-minded
0
significant
0
sincere
0
sombre
0
sorrowful
0
sorry
0
stately
0
stuffy
0
stupid
0
substantial
0
tearful
0
thoughtful
0
tiresome
0
tiring
0
touching
0
unamusing
0
unhysterical
0
witless
0
woeful
10 years ago|1.9k views|share |citing 
APASmart Define. (2016). humorous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/humorous/thesaurus/antonyms
ChicagoSmart Define. 2016. "humorous thesaurus" https://smartdefine.org/humorous/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, humorous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/humorous/thesaurus/antonyms>.
MLASmart Define. "humorous thesaurus" 1 April 2016. Web. 26 September 2026. <https://smartdefine.org/humorous/thesaurus/antonyms>