129 entries under adjective topic. ×

1
fell(harmful, injurious, damaging, deadly)
1
forbidding
1
grim
1
hateful(mean, bad, wrong, evil)
1
hostile
1
in poor condition
1
insalutary(offensive, foul, disgusting, harmful)
1
internecine(violent, cruel, harmful, injurious)
1
lethiferous(harmful, injurious, damaging, deadly)
1
low(mean, evil, nasty, corrupt)
1
prejudicious(harmful, damaging)
1
septic
1
slaughterous(harmful, injurious, damaging, deadly)
1
suicidal(violent, cruel, harmful, injurious)
1
undesireworthy
1
wrackful(harmful, injurious, damaging, deadly)
1
wreckful(harmful, injurious, damaging, deadly)
0
bad-natured(mean, nasty, vicious, wicked)
0
beastly(mean, nasty, vicious, wicked)
0
bitter(mean, nasty, hateful, petty)
10 years ago|17k views|share |citing 
APASmart Define. (2016). deleterious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/deleterious/thesaurus/synonyms
ChicagoSmart Define. 2016. "deleterious thesaurus" https://smartdefine.org/deleterious/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, deleterious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/deleterious/thesaurus/synonyms>.
MLASmart Define. "deleterious thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/deleterious/thesaurus/synonyms>