10
gross(adjective, quality, wrong, evil, poor)
10
harsh(adjective, mean, severe, terrible, ill)
10
hopeless(adjective, person, unhappy, gloomy, mood)
10
invalid(adjective, false, ill, inadequate, useless)
10
repellent(adjective, dull, evil, offensive, unpleasant)
10
second-rate(adjective, mean, weak, lower, poor)
10
unhealthy(adjective, wrong, evil, cross, rank)
10
unspeakable(adjective, unpleasant, awful, terrible, disgusting)
10
wild
9
ungodly(adjective, evil, offensive, unpleasant, awful)
9
awkward(adjective, poor, small, common, usual)
9
depressed(adjective, person, blue, low, sad)
9
disastrous(adjective, severe, evil, sad, extreme)
9
grim(adjective, person, blue, low, difficult)
9
hateful(adjective, person, mean, wrong, evil)
9
low-grade(adjective, mean, weak, lower, base)
9
malignant(adjective, mean, evil, nasty, corrupt)
9
poisonous(adjective, evil, nasty, offensive, violent)
9
unbecoming(adjective, dull, disgusting, ugly, bad-looking)
9
unprincipled(adjective, wrong, evil, violent, wild)
10 years ago|84k views|share |citing 
APASmart Define. (2016). bad thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/bad/thesaurus/synonyms
ChicagoSmart Define. 2016. "bad thesaurus" https://smartdefine.org/bad/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, bad thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/bad/thesaurus/synonyms>.
MLASmart Define. "bad thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/bad/thesaurus/synonyms>