18
boring
5
very upset
4
cringeworthy
4
jejune
4
sarcastic
3
dull
3
humorless
3
sad(adjective, happy, merry, fun, enjoy)
2
monotonous
2
tiresome
2
tiring(verb, adjective, dull, bad, go-go)
2
heavy
1
dreary
1
ponderous
1
tedious
1
uninteresting
1
wearisome
1
wearying
1
annoying(adjective, dull, bad)
1
flat
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APASmart Define. (2016). amusing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/amusing/thesaurus/antonyms
ChicagoSmart Define. 2016. "amusing thesaurus" https://smartdefine.org/amusing/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, amusing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/amusing/thesaurus/antonyms>.
MLASmart Define. "amusing thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/amusing/thesaurus/antonyms>