120 entries under behavior topic. ×

41
blue(adjective, feeling, sad, happiness, sorrow)
32
miserable(adjective, sad, sorrow, woe, characteristic)
25
dejected(adjective, sorrow, characteristic, sad, sadness)
21
glum(adjective, characteristic, sorrow, sadness, negative)
18
downhearted(adjective, characteristic, sorrow, sadness, unhappy)
15
joyless(adjective, sorrow, characteristic, sad, unhappy)
12
plaintive(adjective, sorrow, sad, characteristic, unhappy)
12
displeased(adjective, characteristic, sorrow, sadness, negative)
11
woebegone(adjective, characteristic, sorrow, sadness, negative)
11
hapless(adjective, characteristic, sad, unhappy, unpleasant)
11
disconsolate(adjective, unhappy, sorrow, characteristic, sad)
11
luckless(adjective, characteristic, sorrow, sadness, sad)
11
star-crossed(adjective, characteristic, sorrow, sadness, sad)
10
heartbroken(adjective, characteristic, sorrow, sadness, negative)
10
brokenhearted(adjective, characteristic, sorrow, sadness, sad)
10
gray(adjective, characteristic, sorrow, sadness, negative)
10
ill-fated(adjective, characteristic, sorrow, sadness, sad)
10
ill-starred(adjective, characteristic, sorrow, sadness, sad)
10
unsatisfied(adjective, characteristic, sorrow, sadness, unhappy)
9
despondent(adjective, characteristic, sorrow, sadness, negative)
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APASmart Define. (2016). happy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/happy/thesaurus/antonyms
ChicagoSmart Define. 2016. "happy thesaurus" https://smartdefine.org/happy/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, happy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/happy/thesaurus/antonyms>.
MLASmart Define. "happy thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/happy/thesaurus/antonyms>