19
unfun(adjective, trait, disagreeable, tedium, boredom)
17
boredom(noun, state, emotion, sentiment)
14
work(noun, business, job, gloom, occupation)
13
gloomy(adjective, spirit, depression, sense, feel)
12
unhappiness(noun, state, work, feeling, sorrow)
12
woeful(adjective, depression, sense, feel, sadness)
10
unhappy(adjective, depression, sense, feel, sadness)
9
bad(adjective, characteristic, quality, trait, disagreeable)
9
gloom(noun, work, feeling, sorrow, depression)
9
sorrow(noun, work, feeling, melancholy, gloom)
9
gloominess(noun, feeling, distress, sorrow, melancholy)
9
spiritless(adjective, spirit, life, soul)
8
sad(adjective, feel, impression, emotion, disagreeable)
8
sadness(noun, state, work, feeling, sorrow)
8
misery(noun, state, feeling, ease, pain)
8
jejune(adjective, trait, tedium, boredom, ennui)
8
depression(noun, work, feeling, sorrow, melancholy)
8
weariness(noun, fatigue, tiredness, exhaustion)
7
cringeworthy(noun, adjective, sadness, unhappiness, hardship)
7
grief(noun, feeling, sorrow, melancholy, loneliness)
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APASmart Define. (2016). fun thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fun/thesaurus/antonyms
ChicagoSmart Define. 2016. "fun thesaurus" https://smartdefine.org/fun/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, fun thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fun/thesaurus/antonyms>.
MLASmart Define. "fun thesaurus" 15 March 2016. Web. 22 September 2026. <https://smartdefine.org/fun/thesaurus/antonyms>