70 entries under harmful topic. ×

9
fell(verb, adjective, harsh, violent, heavy)
9
noisome(adjective, bad, injurious, noxious)
9
unwholesome(adjective, unhealthy, rotten, injurious)
8
unhealthy(adjective, distressing, injurious, damaging)
7
ill(adjective, rude, negative, vicious, wicked)
7
unfavorable(adjective, bad, negative, contrary)
6
internecine(verb, adjective, injurious, damaging)
6
vicious(adjective, bad, evil, harsh, violent)
5
annihilative(adjective, injurious, damaging, aper)
5
foul(adjective, evil, corrupt, immoral)
5
insalubrious(adjective, unwholesome, poisonous, toxic)
5
pestiferous(adjective, bad, injurious, noxious)
5
pestilential(adjective, unhealthy, injurious, poisonous)
5
prejudicial(adjective, bad, cruel, negative, unkind)
4
abusive(distressing, damaging)
4
disturbing(adjective, violent, hostile, unfavorable)
4
nocuous(adjective, cruel, negative, unkind, distressing)
3
consumptive(adjective, injurious, damaging, devastating)
3
corrupting(distressing, injurious, damaging, inexpedience)
3
pestilent(adjective, unhealthy, dangerous, fatal)
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APASmart Define. (2016). destructive thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/destructive/thesaurus/synonyms
ChicagoSmart Define. 2016. "destructive thesaurus" https://smartdefine.org/destructive/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, destructive thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/destructive/thesaurus/synonyms>.
MLASmart Define. "destructive thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/destructive/thesaurus/synonyms>