9
boring(adjective, mean, unattractive)
7
unrelatable
6
jejune
3
unattractive(adjective, mean)
2
dull
2
hateful(adjective, mean, unattractive)
2
loathsome
2
repellent(adjective, mean, unattractive)
2
repulsive(adjective, mean, unattractive)
2
tiresome(adjective, mean, unattractive)
1
disagreeable(adjective, mean, unattractive)
1
distasteful
1
drab
1
dreary
1
dry
1
flat
1
heavy
1
horrid
1
humdrum
1
irksome
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APASmart Define. (2016). engaging thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/engaging/thesaurus/antonyms
ChicagoSmart Define. 2016. "engaging thesaurus" https://smartdefine.org/engaging/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2016, engaging thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/engaging/thesaurus/antonyms>.
MLASmart Define. "engaging thesaurus" 31 March 2016. Web. 20 September 2026. <https://smartdefine.org/engaging/thesaurus/antonyms>