9
unfavourable(adjective, state, characteristic, mood)
9
unfortunate(adjective, state, characteristic, mood)
9
unhappy(adjective, state, characteristic, mood)
8
inferior(adjective, quality, bad, rough, poor)
8
junky(adjective, quality, bad, rough, poor)
8
faulty(adjective, quality, bad, badness)
8
ill-behaved(adjective, characteristic, manner, behaviour)
8
inadequate(adjective, quality, bad, badness)
8
misbehaving(adjective, characteristic, manner, behaviour)
8
mischievous(adjective, characteristic, manner, behaviour)
8
troublesome(adjective, characteristic, manner, behaviour)
8
unmanageable(adjective, characteristic, manner, behaviour)
8
unruly(adjective, characteristic, manner, behaviour)
8
wayward(adjective, characteristic, manner, behaviour)
8
willful(adjective, characteristic, manner, behaviour)
7
bummer(noun, adjective, quality, bad, rough)
7
downer(noun, adjective, quality, bad, rough)
7
testing(adjective, state, characteristic, mood)
7
abominable(adjective, quality, bad, badness)
7
amiss(adjective, quality, bad, badness)
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APASmart Define. (2015). not good thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/not_good/thesaurus/synonyms
ChicagoSmart Define. 2015. "not good thesaurus" https://smartdefine.org/not_good/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, not good thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/not_good/thesaurus/synonyms>.
MLASmart Define. "not good thesaurus" 4 November 2015. Web. 25 September 2026. <https://smartdefine.org/not_good/thesaurus/synonyms>