69 entries under detrimental topic. ×
| painful(adjective, bad, severe, offensive, awful) | |
| calamitous(adjective, severe, awful, terrible, wicked) | |
| noisome(adjective, bad, evil, offensive, foul) | |
| risky(adjective, severe, rude, awful, terrible) | |
| pestiferous(adjective, bad, injurious, damaging, deadly) | |
| cataclysmic(adjective, dreadful, unfortunate, injurious, damaging) | |
| hazardous(adjective, risky, dangerous, injurious, unsafe) | |
| unfavorable(adjective, contrary, dreadful, threatening, unfortunate) | |
| dire(adjective, severe, awful, terrible, dreadful) | |
| contrary(adjective, damaging, unfavorable, disparaging, hurtful) | |
| inexpedient(adjective, damaging, disparaging, hurtful) | |
| treacherous(adjective, dangerous, injurious) | |
| consumptive(adjective, injurious, damaging, deadly, destructive) | |
| insanitary | |
| objectionable(adjective, bad, offensive, rude, unpleasant) | |
| perilous(adjective, risky, dangerous, injurious, unsafe) | |
| pestilential(adjective, injurious, damaging, deadly, destructive) | |
| unhelpful(adjective, unpleasant, damaging, hurtful) | |
| unhygienic(adjective, injurious) | |
| unsanitary |
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| APA | Smart Define. (2016). harmful thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/harmful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "harmful thesaurus" https://smartdefine.org/harmful/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2016, harmful thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/harmful/thesaurus/synonyms>. |
| MLA | Smart Define. "harmful thesaurus" 24 March 2016. Web. 1 October 2026. <https://smartdefine.org/harmful/thesaurus/synonyms> |