120 entries under behavior topic. ×

6
incongruous(adjective, characteristic, sorrow, sadness, negative)
6
unseemly(adjective, characteristic, sorrow, sadness, negative)
6
unsuitable(adjective, characteristic, sorrow, sadness, negative)
6
apathetic(adjective, characteristic, sorrow, sadness, negative)
6
disinterested(adjective, characteristic, sorrow, sadness, negative)
6
dispassionate(adjective, characteristic, sorrow, sadness, negative)
6
grievous(adjective, sad, unhappy, sorrow, depression)
6
heartsick(adjective, characteristic, sorrow, sadness, negative)
6
unbecoming(adjective, characteristic, sorrow, sadness, negative)
6
unfit(adjective, characteristic, sorrow, sadness, negative)
6
unpromising(adjective, characteristic, sorrow, sadness, negative)
6
untimely(adjective, characteristic, sorrow, sadness, negative)
6
wrong(adjective, characteristic, sorrow, sadness, negative)
5
dreary(adjective, sad, unhappy, sorrow, depression)
5
indifferent(adjective, characteristic, sorrow, sadness, negative)
5
snakebit(adjective, characteristic, sorrow, sadness, negative)
5
concerned(adjective, characteristic, calm, cool, sorrow)
5
distressing(adjective, sad, unhappy, sorrow, negative)
5
low(adjective, sad, unhappy, sorrow, negative)
5
sullen(adjective, upset, sad, sorrow, depression)
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APASmart Define. (2016). happy thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/happy/thesaurus/antonyms
ChicagoSmart Define. 2016. "happy thesaurus" https://smartdefine.org/happy/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, happy thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/happy/thesaurus/antonyms>.
MLASmart Define. "happy thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/happy/thesaurus/antonyms>